Lab Practical Review.pptx

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Ms. Lee - Rm 305

Lab

Review

Name: ___________________

ES Regents Review

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Objective:

What is the Midterm Lab

Practical

?

Station 1 – Rocks

&

Minerals

•

Identify the rock type and

justify your choice with a

VISIABLE characteristics

•

Identify the properties of a

mineral sample

Station 2 – Earthquakes

•

Calculate earthquake data

•

Draw correctly measured

circles

•

Identify an epicenter.

Station 3 – Elliptical Orbits

•

Draw an ellipse

•

Calculate eccentricity

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Tips for the Earth Science Lab Practical

Station 1 – Rocks & Minerals

• Conduct all mineral tests carefully

• _{Common rock}_observable_{characteristics}

Station 2 – Earthquakes

• _{If you are given the distance to the epicenter use the map scale to set your} distance and draw the circle with the station given as your center.

• If you are given the arrival times of P & S waves find the difference in arrival times then use the edge of your paper and the ESRT to find the distance. Then use the map scale and draw your circle.

• _{Be careful subtracting time, if you need to borrow a minute remember to} change it to 60 seconds.

Station 3 – Elliptical Orbits

• _{Read the directions and place your pushpins in the correct focal points.} • Keep the string tight as you make your ellipse.

• If you get an eccentricity greater than 1 you divided wrong, flip the numbers in the calculator.

• Pay attention to any rounding instructions. (measurements get 1 decimal place, eccentricity gets 3 places.)

• A larger eccentricity means the orbit is more elliptical.

• _{Label one of the foci “Sun”, where the orbit crosses the major axis closest to} the sun has the fastest orbital velocity, further way has the slowest velocity.

Lee

Rock Type Possible Reason

Igneous •• Intergrown Crystals_{Glassy Texture} • _{Vesicular (gas pockets)}

Sedimentary •• Sediments cemented togetherShell Fragments • Fossils

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Station 1 – Minerals

Property

Definition / Test

Options

Breakage

Cleavage -

Fracture -

Streak

Colored -

White / No Streak -

Hardness

Harder -

Softer -

Luster

Metallic -

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Station 1 – Minerals

Examples

– Use the attached flowchart to come up with the mineral

LETTER – not name for each sample

Sample

Breakage

Streak

Hardness

Luster

Mineral

Letter

Min #1

Fracture

Colored Harder Metallic

Min #2

Fracture

Colored

Softer

Non-M

Min #3

Fracture

None/

White

Harder

Non-M

Min #4

Fracture

None/

White

Softer

Non-M

Min #5

Cleavage

Colored Harder

Non-M

Min #6

Cleavage

Colored

Softer

Metallic

Min #7

Cleavage

None/

White

Harder

Non-M

Min #8

Cleavage

None/

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Name: _________________________ Date: _________ Pd. _____ Mineral Lab Practical Review

Mineral Identification

Directions: At this station, you will be asked to identify 3 mineral samples. Be sure to use your knowledge of Earth Science and the ESRT provided by your teacher. Before starting, you must record the mineral sample code on your answer sheet. Please read the information in the properties column for each mineral to correctly fill in the

description column. DO NOT leave any blanks! DO NOT give the mineral name – give the letter off the chart.

1. Mineral Sample Code - ________________

What is the mineral identification letter off the flow chart - _______________

Properties Description

Does the sample show cleavage or fracture? What is the streak of this sample? Compare the hardness of the sample to the glass

plate.

Is the luster metallic or nonmetallic?

Properties Description

plate.

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Properties Description

plate.

Is the luster metallic or nonmetallic?

Properties Description

plate.

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Station 1 – Rocks

Rock Type

How it Forms

Visible

Characteristics

Sedimentary

Igneous

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Visible Characteristic

Rock Type (circle ONE)

1. Vesicular (gas packet)

texture

Sedimentary – Igneous – Metamorphic

2. Often has parallel layers

3. Mineral alignment

4. Clastic texture

5. Glassy texture

6. May have cross-bedding,

mud cracks, worm burrows,

raindrop impressions

7. Foliated texture

8. May be light or dark

intergrown crystals

9. Contains crystals of different

sizes

10. Banding (May have

alternate bands of light and

dark minerals)

11. Often contains fossils

12. Usually composed of pieces

cemented or pressed together

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Name: _________________________ Date: _________ Pd. _____ Rocks Lab Practical Review

Rock Identification

Directions: At this station you will be asked to identify 2 rock samples. You are to use your knowledge of Earth Science and the ESRT provided by your teacher. Before

starting, you need to record the rock sample code on your answer sheet. You must identify the type of rock as Igneous, Sedimentary or Metamorphic by circling the choice provided on the answer sheet. You may use the ESRT to help you complete this task. After you identify the classification of rock, you need to provide supporting evidence as to why you choose that specific classification. This evidence is to be written on the lines provided The supporting evidence you use MUST come from the rock sample you have.

1. Rock Sample Code - ________________

(Circle one type of rock)

I would classify this rock is (igneous / metamorphic / sedimentary) because

______________________________________________________________________________

2. Rock Sample Code - ________________

______________________________________________________________________________

3. Rock Sample Code - ________________

______________________________________________________________________________

4. Rock Sample Code - ________________

______________________________________________________________________________

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Name: _________________________ Date: _________ Pd. _____ Earthquake Lab Practical Review

Directions: At this station you will determine the location of an earthquake epicenter using various types of data that were recorded at three seismic stations. First complete the data chart using your ESRT and your knowledge of earth science.

Directions: Complete the data chart below using the seismographs provided, your ESRT and your knowledge of earth science. Then use a compass to draw circles around the correct cities and be sure to label the epicenter.

Station P arrival Time S arrival Time _{between P and S}Difference Wave

Distance to Epicenter

A 14:05:25 14:08:00

B 14:13:15 14:22:20

C 14:08:15 14:13:05

Station P wave Arrival _Time S Wave Arrival _Time _{between P and}Difference S

Distance to Epicenter

Balboa Heights 12:19:00 12:23:45

Boulder

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Station 3 – Ellipses

Directions to creating and analyzing an elliptical orbit:

1. Place your paper on the board then place the two push pins in the correct location on the board. (.f)

2. Take the loop of string and carefully place it around the push pins.

3. Keeping the string tight, use the string as a guide to carefully draw an ellipse around the push pins.

4. Next to measure the eccentricity of your ellipse use a ruler to measure the distance between the foci (between the push pins) and divide it by the distance of the major axis (a line drawn across the widest part of your ellipse). (show work below)

FORUMLA SUBSTITUTE ANSWER

5. Compare the orbit of your planet to the eccentricity of Mercury? Which is more

elliptical? How can you tell?

___________________________________________________________________________________

6. Compare the orbit of your planet to the eccentricity of Venus? Which is less

elliptical? How can you tell? ___________________________________________________________________________________ ___________________________________________________________________________________

7. On the next page label one of the foci THE SUN

8. On your ellipse (or orbit) label where the planet would move fastest and slowest.

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Calculating Eccentricity

Directions: Calculate the eccentricity of the ellipses below. For each, label the Sun at one of the focal points, be sure to write out the equation, show work & round the eccentricity of the ellipse to the nearest thousandth.

a. Place an “X” on the ellipse where the velocity would be the greatest.

b. What is the eccentricity of Mars? ___________________

c. Compared to the eccentricity of Mars, your ellipse has a ____________________________

eccentricity because _______________________________________________________________

___________________________________________________________________________________ Distance between Foci: ______________ (tenth)

Distance of Major Axis: ______________ (tenth)

Eccentricity = = __________ (thousandth)

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b. What is the eccentricity of Earth ? ___________________

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b. What is the eccentricity of Venus ? ___________________

3.

b. What is the eccentricity of Mercury ? ___________________