MODUL SCIENCE FORM 1

1.1 INTRODUCTION TO SCIENCE

1. i) Name the following apparatus with the word given.

Retort stand Measuring cylinder Bunsen burner Conical flask

ii)

Burette Round bottomed flask Test tube Gas jar

a.. b. c. _d.

iii)

iv)

External calipers Pipette Burette Internal calipers

Filter funnel Stop watch Spring balance Level balance

i . j. k. l.

v)

Stethoscope Opisometer Thermometer Hand lens

b) Draw lines to show the correct match between the apparatus and their functions

Name the apparatus Function

B. To measure the volume of a liquid

A. To measure the weight of an object

1.Beaker

2.Measuring cylinder

3.Gas jar

4.Spring balance

C. To contain liquid and chemicals

D. To measure temperature

E. To collect gases 5.Thermometer

6.Pipette _{F. To measure fixed volume of}

2. Give the function of apparatus below. i) Pipette: ……….. ………... ii) Thermometer: ……….. ……….. iii) Measuring cylinder :

……….. ………... iv) Gas jar

……….. ……….. v) Spring balance ……….. ………... vi) Thermometer: ……….. ………..

3. Name the apparatus below.

i) ii)

iii) iv)

4. Diagram 4 shows a thermometer.

a) What is the reading of the thermometer? ……… b) Name liquid P P: ……….. 30

c) Put a ( / ) in the correct box on the figure to show the correct eye when taking a reading?

P

40

1.2 CELL AS THE BASIC UNIT OF LIFE

1.Name the parts of microscope.

a) Draw lines to show the correct match between the part of the microscope and its function. uestion PART FUNCTION T S R P Q

1.Hold the objective lenses

2.Regulates the amount of light reaching the objective lens

3.Holds the eye piece

4.The lens that magnifies the specimen 5.Reflects light into the microscope Q P T U V W

U 6.Platform where the slide is placed

V W

7.Control the height of the microscope tube with more accurately

8.Control the height of the microscope tube for focusing

R

Questions

2. (i) What is the function of eyepiece?

………. (ii) What is the function of stage?

……… . (iii) What is the function of mirror?

……… . (iv) What is the function of objective lens?

……… . (v). What is the function of coarse focus knob?

………

(vi). What is the function of fine focus knob?

Cell as a unit of life

3. Diagram 3 shows an animal cell.

Diagram 3

Label each part of the cell with a suitable word from the following list.

P

R Q

4. Diagram 4 shows a plant cell

Diagram 4

Label each part of the cell with a suitable word from the following list.

D E F A B C

5 Diagram 5 shows the structure of a cell. S T P Q U R Diagram 5

Match the labeled cell structures to their names and functions.

Cell structure Name Function

P Nucleus Maintains the shape of cell

Q Cell membrane Controls all cell activities

R Cytoplasm Absorb sunlight for photosynthesis

S Chloroplast Stores water and dissolved minerals

T Cell wall Site of chemical processes

U Vacuole Control the movement of

Substances in and out of The cell

UNICELLULAR AND MULITICELLULAR

6. a) Name the organisms shown in Diagram 6.

P : ___________________ Q : ____________________ R : __________________ S : _____________________ Diagram 6

b) Group the organisms in Diagram 6 into unicellular or multicellular organisms Unicellular Multicellular i ______________________ ii ______________________ i __________________________ ii _________________________

Cell organisation

7. Match the name to the correct part of the cell organisation in human.

Name Part of cell organisation

Cell System Tissue Organ P R Q S

8. Show the organisation of cells in the human body by filling in the boxes below with the words given.

e

Made up of different systems that work d together Made up of c different organs made up of different tissues b made up of a the same type of cells

the basic unit

1.3 MATTER

1. Classify the following matter into solids, liquids or gases

a) e) _____________ _______________ f) ` b) ______________ g) ___________________ c) __________________ h) d) ___________________ _________________ hot water Air in the balloon Hot air balloon Carbon monoxide Wind from windmill aeroplane kerosene

2) Match objects/substances below to their arrangement of particles a) glue b) coffee c) smoke i d) breeze e) mercury f) blood ii. g) book h) steam i) oxygen j) rainwater iii. k) thumbtack l) cloth m) droplets n) salt solution i

1.4 THE VARIETY OF RESOURCES ON EARTH

THE CONCEPT OF DENSITY

The density of substance is the mass of the substance in a unit

volume.

The unit for density is kg/m³ or g/cm³

DENSITY (D) = MASS (M)

VOLUME (V)

1.

What is …………

M

a. D = _______

The mass of 5cm³ of iron is 10.0g. What is its density? The density of iron = Mass

Volume = 10.0g 5cm³ = 2

g/cm³

2.The mass of an object is 30 g. What is its density if it has a volume of 12 cm³ ?

3.The volume of R was determined to be 40cm³ in an experiment. If the density of solid R is 0.5 g/cm³. What is its mass?

4.The mass of piece of stone is 360g and its volume is 200cm³. What is the density of the stone?

5. The substances are put together according to a, b, c, and d.Draw the position.

a. Stone and Water b. Water and oil

.

c. Cork , water and oil d. Stone, water ,oil and Cork

A less dense substance FLOATS in a denser liquid

Whereas a denser substance SINKS in a less denser liquid

6. Diagram 6 shows the densities of liquids Z, Y and X and solids P, Q and R which are put into a measuring cylinder.

a. Arrange the density of liquid X, Y and Z in an ascending order?

c. Arrange the solids P, Q and R in an ascending order?

d. Arrange the solids P, Q and R in a descending order?

e. Arrange P,Q, R , X, Y and Z in an ascending order?

7. Diagram 7 shows the arrangement of particles in three substances, J, K and L. Label J, K and L using the following words:

Element Compound Mixture

J K L

8. Draw lines to show the correct match between the names of the substances and the diagrams.

Compound

Mixture

1.5 THE AIR AROUND US

1. Diagram 1 shows the composition and percentage of the constituents of air.

Diagram 1

a) Identify the following gases based on Diagram 1

Nitrogen Oxygen Carbon dioxide

i. Gas A : ___________________________

ii Gas B : ____________________________

iii Gas C : _____________________________

b) State the confirmation test for the gases below :

i) Gas B : _______________________________________________ _______________________________________________ ii) Gas C : ________________________________________________ _________________________________________________ A 78% B 21% D 1% C 0.03%

1.6 SOURCES OF ENERGY

1. State the forms of energy involved in the picture shown using the following word

Chemical energy Sound energy Kinetic energy Nuclear energy Light energy Heat energy a) b) c) d) e) f) g) h) i) DIAGRAM 1.1

2. Diagram 2 shows various sources of energy on earth

Diagram 2

Name the energy sources that represented by

A : ... B : ... C: ... D : ... E : ……… F :……… G :……… C D C D E F G

1.7 HEAT

1. On diagram 1, draw and label the heat flow of sea breeze and land breeze using the given information.

Land breeze Sea breeze Diagram 1 Land Hot air b. …………..

Hot air rises cool air from the sea hot air from land

______ a. ………...

c………..

2. The change of state of matter involves absorption or release of heat energy. a) Draw the particles arrangement of ice when heated

Before heating After heating

b) Draw the particles arrangement of ice when melted

Before melting After melting

c) Draw the particles arrangement of water when frozen

Before freezing After freezing

d) Draw the particles arrangement of water when boiled

e) Draw the particles arrangement of water when cooled

Before cooling After cooling

f) Draw the particles arrangement of iodine crystals when heated

Before sublimation After sublimation

g) Draw the particles arrangement of steam when cooled

Before condensation After condensation

h) Draw the particles arrangement of water when evaporated

5. Draw the particles of X, Y and Z in the box given.

Y