CPE 2006 SCIENCE

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SECTION A Question 1 (20 marks) For each item, there is ONE correct answer. Draw a circle around the letter which shows the correct answer. Example: A bird which has become extinct in Mauritius is the A cardinal.

B pink pigeon.

C dodo.

D Mauritius parakeet.

____________________________________________________________ 1. To make concrete we need cement, water and A salt.

B sand.

C sugar.

D soil.

2. Which of these materials is produced by an animal? A cotton.

B rubber.

C silk.

D nylon. Diagram 1 3. Diagram 1 shows a plant.

stem

One function of the stem is to A absorb water from the soil.

B hold the plant in the soil.

C carry food to other parts of the plant. D produce fruits and seeds.

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Diagram 2

4. Diagram 2 shows the life cycle of a butterfly.

butterfly

pupa

egg

caterpillar

Which one feeds on leaves?

A Egg

B Caterpillar

C Pupa

D Butterfly

5. One source of energy which causes pollution is

A falling water.

B the wind.

C the sun.

D firewood.

6. One way to protect people against infectious diseases is by

A contamination.

B condensation.

C purification.

D vaccination.

7. Study Diagram 3. Diagram 3

When air is sucked out from X, air pressure

air pressure

juice

drinking A makes the juice evaporate.

B causes the juice to freeze.

C pushes the juice up the straw.

D makes the juice condense.

X

n over this page

straw

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8. Which of these is burnt to produce electricity?

A Bagasse

B Fertiliser

C Molasses

D Scum

9. Study Diagram 4. Diagram 4

The baby is holding an object made of glass.

This is dangerous because glass

A is flexible.

B is waterproof.

C breaks easily.

D melts easily.

10. Water becomes safe for drinking after chlorination.

Chlorine is added to drinking water to

A kill germs.

B remove mud.

C remove pesticides.

D kill insects.

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Question 2A (20 marks) 1. Complete the sentences with the correct word or words:

gills fins eyes oxygen scales carbon dioxide

(a) Fish give out .................................................................. and take in .................................................................. .

(b) Fish have .................................................................. to swim and .................................................................. to breathe.

(c) Fish have .................................................................. all over their body. 2. (a) Why is fish a good food for children to eat? Give one reason.

..........………………………………………………………………………………………………………………………………………………………………..…............... (b) Give one way of preserving fish.

..........……………………...………………………………………………………………………………………………………………………………………..…............... 3. Diagram 5(a) shows a glass of water with ice cubes.

ic

Diagram 5( Diagram 5(b)

(a)

Dia

(b)

water

e

Which two states

(i) The ...…......................

gram 5(b) shows the s

Explain what has h

........................………………………

a)

Please turn over this page 5

after 30 minutes

of water are shown in diagram 5(a)?

..................................... state (ii) The ........…..................................................... state.

ame glass of water after 30 minutes.

appened to the ice. ………………….………………………………………….……………………………

……………………………………………………………………………………………………………………………..…...............

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Question 2B (20 marks) Diagram 6 shows an incomplete electric circuit.

electrical wire

switch

bulb

battery

Y

X

Diagram 7 Diagram 6

1. Complete the sentences with the correct word from diagram 6.

(a) The source of electrical energy is the ........................................................................................................ . (b) Light energy is produced by the ........................................................................................................ .

2. The bulb lights when a ………………………… is placed across X and Y. copper wire

(a) Give two other materials that will cause the bulb to light when placed

across X and Y.

(i) ................................................................................................... (ii) .................................................................................................... . (b) Give two materials that will not cause the bulb to light when placed

across X and Y.

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(i) ................................................................................................... (ii) .................................................................................................... . 3. Diagram 7 shows an electrical wire.

Diagram 7

Why is the metal wire covered with plastic?

......................………………………………………………………………………………………………………………..............................................................…………............... ......................……………………………………………………………………………………………………………............................................................……………....…......... 4. Diagrams 8 (a) and 8 (b) show two sets of teeth in the lower jaw.

Diagram 8 (a)

(a) Study diagram 8(a).

It shows a set of teeth called .....

(b) Study diagram 8(b).

How many teeth should an adult

(c) Tooth decay can result in .............

plastic

metal wire

Please turn over this page 7

Diagram 8 (b)

........................................…............. teeth.

person have in both jaws? ..........................................…...........… .

........................…..………………………..………………………………………………..…............. .

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SECTION B Question 3 (20 marks) 1. Study diagram 9 and answer the questions which follow.

Diagram 9

glass rod clear mixture water

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salt

C A

In A, water is added to salt in a glas

(a) In B, the water and salt are sti

Name the solvent in B. .........………

(b) In C, the liquid is a clear mixtu

Explain what has happened to th

....……………………...............................…....…............….......

(c) Explain how you could get the sa

....……………………...............................…....…............….......

....……………………...............................…....…............….......

B

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s jar.

rred with a glass rod.

……………..........………….…………………………………..…....………………….............…...........

re. You can no longer see the salt.

e salt.

....………………………………………………………..........…...............................…............……......

lt back again.

....………………………………………………………..........…...............................….......……...........

....………………………………………………………..........…...............................…..……................

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(d) The solid in A is salt.

(i) Name one other solid that will form a clear mixture with water.

.........................…………………………………………..……………………………………….............................…....….............. .

(ii) Name one solid that will not form a clear mixture with water. .........................…………………………………………..……………………………………….............................…....….............. .

2. Study diagram 10 which shows different stages of how plants reproduce.

..........….....................contain

box 2 box 1

germinate to give NEW

PLANTSproduce

produce

..........…..................... FRUITS

PLANTS Diagram 10

(a) The missing word in box 1 is .......................................................…....….............. .

(b) The missing word in box 2 is .......................................................…....….............. .

(c) Pollination is necessary for plants to produce fruits.

(i) What is pollination? ..........................................................…............………..……...........………………………………………………………..........…...............................….........

..........................................................…..........…….....….....……………………..……..…………………………..........…...............................….................... (ii) Name one animal that helps in pollination.

..........................................................….........…….…...........………………………………………………………..........…...............................…....................

(d) Give one reason why some endemic plants have become rare in Mauritius and Rodrigues.

..........................…………..............................…............………..……...........………………………………………………………..........…...............................….........

.......................................................…………….…............….....….....……………………..……..…………………………..........…...............................…....................

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Question 4 (20 marks)

1. Diagram 11 shows filtration of water (a) Write Yes or No to complete t Table 1

Water at A

Waat

contains mud Yes

contains soap Yes

(b) Give one way in which pollute

(i) to people : .....................…............……

........……………….….………..............................…

(ii) to the environment : ….....……

........……………….….………..............................…

(c) Factories sometimes pollute th

Give two ways in which factor

(i) ..........................................................…............……

........……………….….………..............................…

(ii) ..........................................................…............……

........……………….….………..............................…

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Diagram 11 .

Aable 1.

water with mud and soap ter

B

B

d water is harmful

…..……...........……………………………………………………

…….............................………........................….....................

…..……...........……………………………………………………

….…….............................………............................................

e environment.

ies can reduce the pollution the

…..……...........……………………………………………………

…….........…...............………....…..........................................

…..……...........……………………………………………………

…….............................……….................................................

sand

small pebbles

big pebbles

…..........…...............................….........

..............................................................

…..........…...............................….........

.............................................................

y cause.

…..........…...............................….........

..............................................................

…..........…...............................….........

...….......................................................

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2. Diagram 12 shows three living things.

4 11

cow plant

(a) The cow, the plant and the bird feed themselves and

Give one other similarity between the cow, the plant

..........…........................................................................……………………..........………..........................

(b) The bird lays eggs but the cow gives birth to its you

Give one other difference between the bird and the c

..........……....…..............................……………………………………………………….……………..………

..........……...............…...........……………………………………………...………….…………………………

(c) Plants make their food by photosynthesis. Explain h

......………………....................………..………................……………………..........……….........................

.……………….........................………..………................……………………..........……….........................

.……………….........................………..………................……………………...........………........................

.……………….........................……..………......………...………………………….....……….......................

Diagram 12

Please turn over this page

bird

reproduce.

and the bird.

.........…..........................................................................

ng.

ow.

…………………………………………................…….....

……...……………………………...…...…..............….....

ow they do this.

...................................…...............................................

..............…....................................................................

......................................................................................

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