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SECTION A

Answer all the questions.

1. Figure 1 shows a microscope.

a) On Figure 1, label the parts X, Y and Z using the following words.

Diaphragm coarse focus knob objective lens

( 3 marks)

b) Match the following parts with their functions.

Part Function

(3 marks)

X

To control the amount of lightpassing through the specimen

Y

Z

To enlarge the specimen

To focus on the specimen

To reflect light into the

objective lens

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2. Figure 2 shows a measuring tool. Set up the apparatus in an experiment to calculate

the volume of a cook and a stone.

Figure 2

a) Name the measuring tool._____________________________________________________________________

( 1 mark)

b) What is the method used to determine the volume of the stone?

_____________________________________________________________________( 1 mark)

c) What is the SI unit of the measuring tool?

_____________________________________________________________________( 1 mark )

d) Calculate the volume of the stone?

_____________________________________________________________________

( 1 mark )

e) Calculate the volume of the cork ?

_____________________________________________________________________

( 1 mark )

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3. Figure 3 shows a cell from a green plant and a human cheek cell.

a) Name the labeled structures.

Figure 3

( 6 marks)b) Name the part of the plant cell that

i.) controls all cell activities.

____________________________________________________________

ii) carries out photosynthesis

_____________________________________________________________

iii) support and maintains the shape of the cell

_____________________________________________________________

( 3 marks)

4. Figure 4 show three organisms that live in water.

Figure 4

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a) Name the organisms.

X : ________________________________________________________

Y : ________________________________________________________Z : ________________________________________________________

( 3 marks )

b) State the organisms that can make its own food.

_____________________________________________________________________

( 1 mark )c) Give a reason for your answer.

_____________________________________________________________________

( 1 mark )

5. Figure 5 shows the apparatus set up used by a student in his experiment.

Figure 5

a) Name the balance shown in Figure 5?_____________________________________________________________________

( 1 mark )

b) What is the use of the balance ?

_____________________________________________________________________( 1 mark )

c) What is the reading of the balance ?_____________________________________________________________________

( 1 mark )

d) Name the SI unit for weight.

_____________________________________________________________________

( 1 mark )

e) Predict what will happen to the mass if the object of 3 kg is measured on the Moon.

_____________________________________________________________________

( 1 mark )

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6. a. The diagram below shows the various types of human cells. Name the cell.

i) ii)

------------------------------------- --------------------------------------

iii) iv)

--------------------------------------- -------------------------------------------

( 4 marks)b. Figure 6 shows two systems, X and Y, in the human body.

Figure 6

i) Name the two systems

X : __________________________________________________________

Y : __________________________________________________________( 2 marks)

ii) Complete the flow chart below which shows the cell organization in multicellular

organism.

marks)

( 4 marks)

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Section B( 20 marks)

Instructions : Answerall the questions in this section.

7. Figure 7 shows four organisms.

a) State one characteristic of organisms W, X, Y and Z based on the number of cells they

are made up of

W : __________________________________________________________

X : __________________________________________________________

Y : __________________________________________________________Z : __________________________________________________________

( 4 marks)

b) Classify the organisms into two groups based on the quantity of cells. Name theorganisms belonging to each group.

( 4 marks)

W, X, Y , Z

Type of organism Type of organism

Label of organisms Label of organisms

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8.a) Complete the table below.

Physical quantity S.I unit Symbol of unit

Length metreMass Kg

Time

Temperature K

Electric current ampere

( 6 marks)b) A group of students carries out an experiment to determine the relationship between

the length of a pendulum and the number of swings it makes in a minute.

The result of the experiment is shown in table 1.

Experiment Length of pendulum ( cm) Number of oscillations made in one minute.1 10 55

2 20 50

3 30 45

a) What hypothesis can you made for the experiment?

_____________________________________________________________________( 1 mark )

b) State the variables used in this experiment.

i) Constant variable : ___________________________________________________ii) Manipulated variable : ________________________________________________

iii) Responding variable : _________________________________________________( 3 marks)

c) Predict the number of oscillation made in one minute if the length of pendulum is 40 cm.

_______________________________________________________________________

( 1mark )

d) What conclusion can you make from the experiment?_______________________________________________________________________

( 1 mark )

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