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1.1 INTRODUCTION TO SCIENCE
1. i) Name the following apparatus with the word given.
Retort stand Measuring cylinder Bunsen burner Conical flask
ii)
iii)
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Burette Round bottomed flask Test tube Gas jar
a.. b. c. d.
e. f. g. h.
iv)
v)
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External calipers Pipette Burette Internal calipers
Filter funnel Stop watch Spring balance Level balance
Stethoscope Opisometer Thermometer Hand lens
i . j. k. l.
m. n.. o. p.
b) Draw lines to show the correct match between the apparatus and their functions
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Name the apparatus Function
q. r. s.. t.
2. Give the function of apparatus below.
i) Pipette:
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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 gases5.Thermometer
6.Pipette F. To measure fixed volume of liquid
…………………………………………………………………………………..
…………………………………………………………………………………...
ii) Thermometer:
…………………………………………………………………………………..
…………………………………………………………………………………..
iii) Measuring cylinder :
…………………………………………………………………………………..
…………………………………………………………………………………...
iv) Gas jar
…………………………………………………………………………………..
…………………………………………………………………………………..
v) Spring balance
…………………………………………………………………………………..
…………………………………………………………………………………...
vi) Thermometer:
…………………………………………………………………………………..
…………………………………………………………………………………..
3. Name the apparatus below.
i) ii)
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iii) iv)
v) vi)
4. Diagram 4 shows a thermometer.
a) What is the reading of the thermometer?
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……………………………………………
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?
1.2 CELL AS THE BASIC UNIT OF LIFE
1.Name the parts of microscope.
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P
P
40
a) Draw lines to show the correct match between the part of the microscope and its function.
uestion
Questions
2. (i) What is the function of eyepiece?
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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
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
S
…………………………………………………………………………………….
(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.
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Diagram 3
Label each part of the cell with a suitable word from the following list.
4. Diagram 4 shows a plant cell
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P
R
Q
Nucleus Cell membrane Cytoplasm
Diagram 4
Label each part of the cell with a suitable word from the following list.
5 Diagram 5 shows the structure of a cell.
S
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D
E
F
A
B
C
Cell membrane Cytoplasm Chloroplast Nucleus Vacuole cell wall
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.
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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.
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Name Part of cell organisation
Cell
System
Tissue
Organ
8. Show the organisation of cells in the human body by filling in the boxes below with the words given.
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P
Q
S
System tissue organ cell organism
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 gasesa) e)
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Air in theballoon
_____________ _______________ f) ` b)
______________ g)
___________________
c)
__________________ h) d)
___________________ _________________
2) Match objects/substances below to their arrangement of particles
a) glue
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hot water
Hot airballoon
Carbon monoxide
Wind from windmill
aeroplane
kerosene
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
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.
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i
The unit for density is kg/m³ or g/cm³
DENSITY (D) = MASS (M) VOLUME (V)
1. What is ………… Ma. D = _______
D V V = _________
Example 1
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?
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A less dense substance FLOATS in a denser liquidWhereas a denser substance SINKS in a less denser
liquid
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
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.
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STONE WATER OIL CORK
a. Arrange the density of liquid X, Y and Z in an ascending order?
b. Arrange the density of liquid X, Y and Z in a descending order?
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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?
f . Arrange P, Q ,R , X, Y and Z, in a descending order?
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7. Diagram 7 shows the arrangement of particles in three substances, J, K and L. Label J, K and L using the following words:
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Element Compound Mixture
J K L
E_ _ _ _ _ t C _m_ _ und M _ x t _ _ e
8. Draw lines to show the correct match between the names of the substances and the diagrams.
1.5 THE AIR AROUND US
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Compound
Mixture
Element
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 : ________________________________________________ _________________________________________________
1.6 SOURCES OF ENERGY
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A 78%
B 21%
D 1%
C 0.03%
1. State the forms of energy involved in the picture shown using the following word Chemical energy Sound energy Kinetic energy Nuclear energy Light energyHeat energy
a) b) c)
d)
e) f)
g) h) i)
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DIAGRAM 1.12. 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 :……………………………………………………………
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C D
C
DE 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
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Land
Hot air
b. …………..
Hot air rises cool air from the sea hot air from land
______a. ……………….....
c………………..
Sea breeze
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
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Before boiling After boiling
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
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Before evaporation After evaporation
5. Draw the particles of X, Y and Z in the box given.
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YX Z
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