SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
SNC 1D: Space
Other Objects In Our Solar System
Planetary Moons
Revolve in ____________ ___________ around planets (due to planet’s ____________)
Large, natural ___________ made of ________
o A satellite is any object that _________ a planet→ can be
man-made (ex. ______________) or natural (ex. _______) Use _____________ to gather information about moons
(Ex. ___________ and ____________, the two moons of Mars)
Earth’s moon
______________ astronomical object to Earth
Diameter is ______ of Earth’s, Gravity is ______ of Earth’s Has no __________________
Surface is filled with ________, __________ & ___________ Same side of the Moon is always ___________ ___________ Visited by astronauts from the _____________ spacecraft on
____________________
Comets
Large clumps of frozen ______, _______ and ________ Have enormous ___________ orbits around the ________ →
can travel as far as ________ and come in very close to the Sun Comets consist of a central ‘head’ or ___________ that is
surrounded by a cloud of vaporized gases called the _________ As the comet approaches the Sun, the frozen substances
______________ into gases
Solar __________ push gases outward to form a bright, glowing _________ that can be millions of ___________ long
Areas in space containing large numbers of comets are called ____________
Since most comets have regular _________ ____________, we can predict when we will be able to see them
o Ex. Halley’s comet is visible every _______ years (last
Asteroids
Small, ___________ shaped objects made of ________ & _______ (rich in minerals) that orbit the __________
Largest asteroid only about ___________ in diameter
________________: A ring of asteroids between ________ & _____________
The largest known asteroid in the Asteroid belt is named ________
Some asteroids travel in orbits that bring them closer to Earth 1937 → Asteroid “_____________” came within ____________
of Earth (about 2x distance from Earth to Moon)
Meteoroids
Small lumps of ________ or __________ trapped by Earth’s ______________ and pulled down through Earth’s atmosphere Meteor: Meteoroid that has __________ the Earth’s atmosphere
o As it falls, the __________ between the meteor and the air
particles causes the meteor to ___________
o Creates a bright streak of ________ across the sky →
wrongly called a “__________ ________”
Meteorite: Meteoroid that has ___________ to the ground
o Only __________ meteoroids reach the ground → most
