265362 KS3 Sc T5-7 Paper2 Covercrossfield.co.uk/doc/2005_sc_3_5-7_Paper2.pdf · 1ai 1 mark 1aii 1 mark 1aiii 1 mark 1aiii 1 mark 1. The drawing below shows a garden water feature

Sc

2005

Science test

Paper 2

Please read this page, but do not open the booklet until your

teacher tells you to start. Write your name and the name of

your school in the spaces below.

First name

Last name

School

Remember

■ The test is 1 hour long.

■ You will need: pen, pencil, rubber, ruler, protractor andcalculator.

■ The test starts with easier questions.

■ Try to answer all of the questions.

■ The number of marks available for each question is givenbelow the mark boxes in the margin. You should not writein this margin.

■ If you are asked to plan an investigation, there will bespace for you to write down your thoughts and ideas.

■ Do not use any rough paper.

■ Check your work carefully.

■ Ask your teacher if you are not sure what to do.

For marker’suse only Total marks

Borderline check

KEY STAGE

3TIER

5–7

QCA/05/1420

265362 KS3 Sc T5-7_Paper2_Cover 20/6/05 12:01 PM Page fci

1ai

1 mark

1aii

1 mark

1aiii

1 mark

1aiii

1 mark

1. The drawing below shows a garden water feature. It is solar-powered.

The solar cell absorbs energy from the Sun.

The solar cell is connected to a motor in the bowl.

The motor drives a pump.

Water is pumped up to the jug and it flows back down to the bowl.

(a) Use the information above to help you to complete the

following sentences.

Choose words from the list.

(i) The useful energy change in the solar cell is from

light to ____________________ energy.

(ii) The useful energy change in the motor is from

electrical energy to ____________________ energy.

(iii) As the water flows from the jug to the bowl ____________________

energy is changed into ____________________ energy.

KS3/05/Sc/Tier 5-7/P2 2

jug

bowl

pipe from pumpto jug

motorandpump

wires to motor

solar cell

chemical electricalgravitational

potential

light sound thermal

kinetic

265362 KS3 Sci 5-7 Pap2.qxd 20/6/05 11:52 am Page 2

1b

1 mark

1b

1 mark

(b) Give one advantage and one disadvantage of using a solar cell to

power the water feature.

advantage _______________________________________________

___________________________________________________________

disadvantage _____________________________________________

___________________________________________________________

maximum 6 marks

KS3/05/Sc/Tier 5-7/P2 3

Total

6


2a

1 mark

2a

1 mark

2a

1 mark

2. Lorna built the circuit drawn below. All the bulbs are identical.

(a) Complete the table below by writing on or off for each bulb.

One has been done for you.

KS3/05/Sc/Tier 5-7/P2 4

switch bulb

S1 S2 A B C D

open open off off off off

open closed

closed open

closed closed

S1

S2

A B C

D


2b

1 mark

(b) Lorna then built a different circuit as shown below.

How could Lorna get both bulbs to light at the same time in this circuit?

___________________________________________________________

___________________________________________________________

maximum 4 marks

KS3/05/Sc/Tier 5-7/P2 5

Total

4

E

F

S3

S4

S5


3ai

1 mark

3aii

1 mark

3b

1 mark

3. (a) (i) Air contains nitrogen.

In the box below draw five circles, , to show the arrangement

of particles in nitrogen gas.

(ii) Zeena carries a personal emergency alarm.

It uses nitrogen gas to produce a very loud sound.

The nitrogen gas in the container is under much higher pressure

than the nitrogen gas in the air.

How does the arrangement of nitrogen particles change when the

gas is under higher pressure?

________________________________________________________

________________________________________________________

(b) Use words from the boxes below to complete the sentence.

The rate at which the nitrogen particles hit the inside of the container

is ____________________ the rate at which nitrogen particles hit the

outside of the container.

KS3/05/Sc/Tier 5-7/P2 6

greater than less than the same as

lid

diaphragmcylindercontainingnitrogen gasunder highpressure

PERSONAL EMERGENCYALARM


3ci

1 mark

3cii

1 mark

(c) Zeena pushes the lid down and nitrogen gas escapes through the

diaphragm.

The diaphragm vibrates and produces a sound.

The pattern on the oscilloscope screen below represents the soundwave

produced by the alarm.

(i) The loudness of the sound produced by the alarm decreases between

X and Y.

How can you tell this from the graph?

________________________________________________________

________________________________________________________

(ii) The pitch of the sound produced by the alarm stays the same between

X and Y.

How can you tell this from the graph?

________________________________________________________

________________________________________________________

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 7

Total

5

X

Y


4a

1 mark

4a

1 mark

4bi

1 mark

4bii

1 mark

4. Molly used a pH sensor to test different liquids. She dipped the probe of the

sensor into each liquid and recorded the pH value in a table.

(a) In the table below, tick one box for each liquid to show whether it is

acidic, neutral or alkaline. One has been done for you.

(b) Between each test Molly dipped the probe into distilled water.

(i) Why did she do this?

________________________________________________________

________________________________________________________

(ii) Which other liquid in the table could Molly use between tests to

have the same effect as distilled water?

________________________________________________________

KS3/05/Sc/Tier 5-7/P2 8

probe

liquid pH value acidic neutral alkaline

alcohol 7

dilute hydrochloric acid 2 ✓

distilled water 7

vinegar 3

sodium hydroxide solution 11


4ci

1 mark

4cii

1 mark

4di

1 mark

4di

1 mark

4dii

1 mark

(c) Molly put a piece of magnesium into a test-tube containing 20 cm3 of

vinegar. She put another piece of magnesium into a test-tube containing

20 cm3 of dilute hydrochloric acid.

(i) Molly thought that magnesium would react more vigorously with

hydrochloric acid than with vinegar.

What information in the table made Molly think this?

________________________________________________________

________________________________________________________

(ii) How would Molly be able to tell if a more vigorous reaction took place

with hydrochloric acid than with vinegar?

________________________________________________________

________________________________________________________

(d) (i) Complete the word equation for the reaction between magnesium

and hydrochloric acid.

magnesium + hydrochloric → __________________ + __________________

acid

(ii) After some time this reaction stopped. Why did the reaction stop?

________________________________________________________

________________________________________________________

maximum 9 marks

KS3/05/Sc/Tier 5-7/P2 9

Total

9

vinegar

magnesium

dilutehydrochloricacid

magnesium


5a

1 mark

5b

1 mark

5. Two groups of pupils investigated the factors affecting the time taken for an

indigestion tablet to dissolve in 100 cm3 of water.

Group 1 recorded their results in the table below.

results of group 1

(a) What factor did group 1 change as they carried out their investigation?

___________________________________________________________

(b) Before the investigation, group 1 made a prediction.

They found this prediction was supported by the results in the table.

What prediction did group 1 make?

___________________________________________________________

___________________________________________________________

KS3/05/Sc/Tier 5-7/P2 10

tablettime taken to

dissolve (s)

whole tablet 34

broken tablet 28

finely crushed tablet 22


5c

1 mark

5d

1 mark

5e

1 mark

(c) Group 2 investigated how the temperature of the water affects the time

taken for a whole tablet to dissolve.

Here are their results.

results of group 2

What factor did group 2 change as they carried out their investigation?

___________________________________________________________

___________________________________________________________

(d) What pattern do the results recorded by group 2 show?

___________________________________________________________

___________________________________________________________

(e) Look at the results presented by group 1 and group 2.

Both groups used the same type of tablet.

Estimate the temperature of water used by group 1.

_______°C

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 11

Total

5

temperature of water (oC) time taken to dissolve (s)

65 24

40 35

15 90

5 100


6a

1 mark

6b

1 mark

6. (a) When fertilisation takes place, the nucleus of a sperm joins with the

nucleus of an ovum (egg).

In which part of the reproductive system does fertilisation normally

take place in humans?

Tick the correct box.

(b) The table below gives information about fertilisation in three animals.

Frogs release their eggs and sperm into water.

The eggs are fertilised in the water.

Why is it an advantage for frogs to release large numbers of eggs and

sperm?

___________________________________________________________

___________________________________________________________

KS3/05/Sc/Tier 5-7/P2 12

animalDoes fertilisation take place

inside or outside the body?

number of eggs

released at a time

human inside 1

bird inside 4

frog outside 3000

cervix ovary

oviduct uterus


6ci

1 mark

6cii

1 mark

6d

1 mark

(c) The diagram shows a section through a fertilised egg of a bird.

(i) The shell of a bird’s egg is porous. This means it has microscopic

holes in it.

Why does it need to be porous?

________________________________________________________

(ii) Give one other function of the egg shell.

________________________________________________________

(d) A bird’s egg contains yolk which is a food store for the developing chick.

A human egg does not contain yolk.

Why does a human egg not need to contain a food store for the embryo?

___________________________________________________________

___________________________________________________________

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 13

Total

5

embryoyolk

air space

shell


7ai

1 mark

7ai

1 mark

7aii

1 mark

7. (a) The diagram shows a group of cells from the lining of the mouth.

(i) Give the name and function of part P.

name of part P

________________________________________________________

function of part P

________________________________________________________

________________________________________________________

(ii) Which word describes this group of cells?


KS3/05/Sc/Tier 5-7/P2 14

P

compound organism organ tissue


7bi

1 mark

7bii

1 mark

7biii

1 mark

(b) The diagram below shows muscle cells from the wall of the human

intestine.

(i) Muscle cells can contract.

Give one reason why muscles are needed in the intestine.

________________________________________________________

________________________________________________________

(ii) Other cells in the intestine produce enzymes.

What effect do enzymes in the intestine have on nutrients such as

protein?

________________________________________________________

________________________________________________________

(iii) Which of the following is required in the diet to keep food moving

through the intestine?


maximum 6 marks

KS3/05/Sc/Tier 5-7/P2 15

Total

6

fat fibre

protein starch


8a

1 mark

8. Suzi investigated how temperature affects the number of bubbles produced

by waterweed in one minute.

She set up the experiment as shown below.

When the temperature of the water was 10°C the waterweed did not

produce bubbles.

(a) Suzi increased the temperature of the water in the water-bath to 20°C.

The waterweed started to produce bubbles.

She waited two minutes before starting to count the bubbles.

Explain why she waited for two minutes before she started to count the

bubbles.

___________________________________________________________

___________________________________________________________

KS3/05/Sc/Tier 5-7/P2 16


8bi

1 mark

8bii

1 mark

8c

1 mark

8d

1 mark

(b) Suzi counted the number of bubbles produced at six different

temperatures.

Her results are shown on the graph below.

(i) Draw a smooth curve on the graph.

(ii) Use your curve to find the temperature of water which produced the

most bubbles per minute.

_______°C

(c) Suzi predicted that the higher the temperature the more bubbles would

be produced.

Which points on the graph support Suzi’s prediction?

___________________________________________________________

(d) Suzi’s data does not show clearly the exact temperature at which most

bubbles were produced.

How could she improve the data she collects to find this temperature?

___________________________________________________________

___________________________________________________________

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 17

Total

5

15

10

5

0 0 10 20 30 40 50 60 70

temperature of water-bath (oC)

number ofbubblesproduced(per minute)

20

A

B

C D

E

F


9ai

1 mark

9ai

1 mark

9. A reed switch is made of two iron strips inside a glass tube.

The iron strips close together when a magnet is brought near.

They spring apart again when the magnet is removed.

(a) Hilary set up the circuit shown below.

She tried to close the reed switch using an electromagnet.

She closed switch E but the electromagnet was not strong enough to

close the reed switch.

(i) Give two ways Hilary could increase the strength of the electromagnet.

1. ___________________________________________________

2. ___________________________________________________

KS3/05/Sc/Tier 5-7/P2 18

N S

iron core

E

glass tube

iron strip


9aii

1 mark

9bi

1 mark

9bii

1 mark

(ii) Hilary increased the strength of the electromagnet.

The reed switch closed.

The iron strips were magnetised as shown below.

She reversed the current in the coil of the electromagnet.

On the diagram below, label the poles of the iron strips when the

current was reversed.

(b) (i) Iron and steel are both magnetic materials.

Explain why the strips must be made of iron and not steel.

________________________________________________________

________________________________________________________

(ii) She replaced the reed switch with a piece of copper wire.

The current through the bulb increased.

Explain why more current flowed through the bulb when the

reed switch was replaced with copper wire.

________________________________________________________

________________________________________________________

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 19

Total

5

S

S N

N


10. John used an electrical heater to heat a cup of water. He kept stirring the

water. When the temperature reached 20°C, he started his stopwatch and

measured the temperature of the water every half minute.

He switched off the heater after 4 minutes, but continued to record the

temperature.

His results are shown in the table.

One measurement is missing and another appears to be wrong.

KS3/05/Sc/Tier 5-7/P2 20

time (minutes) temperature (°C)

0.0 20

0.5 26

1.0 31

1.5 36

2.0 41

2.5 46

3.0

3.5 57

4.0 56

4.5 58

5.0 59

5.5 59


10a

1 mark

10a

1 mark

10a

1 mark

10a

1 mark

10b

1 mark

(a) Use the results in the table to draw a graph on the grid.

Label the axes.

Plot the points and draw a smooth curve of best fit.

(b) From your curve, estimate the temperature of the water after three

minutes.

_______°C

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 21

Total

5

( )

( )


11a

1 mark

11b

1 mark

11b

1 mark

11. Part of the reactivity series of metals is shown below.

most reactive potassium

sodium

magnesium

aluminium

iron

lead

least reactive copper

(a) Dan added a piece of magnesium to a solution of copper sulphate.

A displacement reaction took place.

The word equation for the reaction is shown below.

magnesium + copper sulphate → magnesium sulphate + copper

Why is this called a displacement reaction?

___________________________________________________________

___________________________________________________________

(b) Look at each pair of chemicals in the table below.

Use the reactivity series to predict whether a displacement reaction

would take place.

Write yes or no in the second column and give the reason for your

decision.

KS3/05/Sc/Tier 5-7/P2 22

pairs of chemicals

Does a displacement

reaction take place?

yes or no

reason

iron + sodium chloride

magnesium + lead nitrate


11ci

1 mark

11cii

1 mark

(c) Dan wanted to find out where zinc should be placed in the reactivity

series.

(i) What tests should Dan do to find the correct position of zinc in the

reactivity series?

________________________________________________________

________________________________________________________

________________________________________________________

(ii) How would Dan use his test results to decide where to put zinc in

the reactivity series?

________________________________________________________

________________________________________________________

________________________________________________________

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 23

Total

5


12a

1 mark

12a

1 mark

12b

1 mark

12. As apples become ripe they produce a gas called ethene.

Ethene passes through the air from ripe apples to unripe apples.

Ethene causes unripe apples to ripen more quickly.

(a) Three effects of ethene on apples are listed below.

• The green substance, chlorophyll, breaks down.

• Starch breaks down to form glucose.

• Pectin, a substance which holds cells together, breaks down.

Describe and explain the changes you would notice when apples

become ripe as a result of any two of these effects.

1. change ________________________________________________

_________________________________________________________

explanation ____________________________________________

_________________________________________________________

2. change ________________________________________________

_________________________________________________________

explanation ____________________________________________

_________________________________________________________

(b) Give the name of the process by which gases such as ethene spread

through the air in a room.

________________________________

KS3/05/Sc/Tier 5-7/P2 24


12c

1 mark

12c

1 mark

(c) The diagram below represents a molecule of ethene.

Ethene is flammable and must be kept away from naked flames.

Look at the diagram of the molecule of ethene.

Give the name and chemical formula of the two compounds formed when

ethene burns in oxygen.

1. name

______________________________________________________

formula

_______

2. name

______________________________________________________

formula

_______

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 25

Total

5

H

H

H

H

CC


13ai

1 mark

13aii

1 mark

13bi

1 mark

13bii

1 mark

13. The table shows how hydrogencarbonate indicator solution changes colour

when the concentration of carbon dioxide in it changes.

Sunil set up the experiment shown below and put both test-tubes on a

window-sill.

Use information in the table to help you answer the questions below.

(a) The indicator in test-tube A changed from orange to yellow.

(i) What process, in the cells of the maggots, caused this colour change?

________________________________________________________

(ii) Explain what happens in this process to cause the colour change.

________________________________________________________

________________________________________________________

(b) The indicator in test-tube B changed from orange to purple.

(i) What process, in the cells of the leaves, caused this colour change?

________________________________________________________

(ii) Explain what happens in this process to cause the colour change.

________________________________________________________

________________________________________________________

KS3/05/Sc/Tier 5-7/P2 26

concentration of carbon dioxide colour change

increases orange to yellow

decreases orange to purple

maggots onwire mesh

leaves onwire mesh

orangehydrogencarbonate

indicator

test-tube A test-tube B


13c

1 mark

(c) Sunil then put two fresh leaves into test-tube C containing 30 cm3 of

orange hydrogencarbonate indicator.

He added some maggots on a piece of wire mesh as shown below.

He put the test-tube on a window-sill.

The indicator remained orange. Explain why.

___________________________________________________________

___________________________________________________________

___________________________________________________________

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 27

Total

5

hydrogencarbonateindicator

leavesmaggots

test-tube C


14a

1 mark

14b

1 mark

14. Read the magazine cutting about research into heart disease.

(a) Why can the results of this research not be used to draw any

conclusions about heart disease amongst women across the world?

___________________________________________________________

___________________________________________________________

(b) Give one reason why the data collected in this study is likely to be

reliable.

___________________________________________________________

___________________________________________________________

KS3/05/Sc/Tier 5-7/P2 28


14c

1 mark

14c

1 mark

14c

1 mark

(c) After reading the magazine cutting, pupils wrote the ideas below.

Decide if each idea is supported by information in the cutting.


Use the information in the cutting as evidence to justify your decision in

the third column.

maximum 5 marks

KS3/05/Sc/Tier 5-7/P2 29

Total

5

Idea

Is the idea supported by

evidence?


Use the information in the

magazine cutting as evidence

to justify your decision.

One in five of all British

females show signs of

heart disease.

Earlier treatment for

heart disease must have

been more effective than

modern medicines.

Four out of five British

women in the 60-79 age

group showed no signs

of heart disease.

Yes No

Yes No

Yes No


END OF TEST

KS3/05/Sc/Tier 5-7/P2 30


1 mark

KS3/05/Sc/Tier 5-7/P2 31

Total

8


1 mark

KS3/05/Sc/Tier 5-7/P2 32


1 mark

KS3/05/Sc/Tier 5-7/P2 33

Total

8


1 mark

KS3/05/Sc/Tier 5-7/P2 34


1 mark

KS3/05/Sc/Tier 5-7/P2 35

Total

8


1 mark

KS3/05/Sc/Tier 5-7/P2 36


© Qualifications and Curriculum Authority 2005QCA, Key Stage 3 Team, 83 Piccadilly, London W1J 8QA 265362

265362 KS3 Sc T5-7_Paper2_Cover 20/6/05 12:01 PM Page fcii

Documents

265362 KS3 Sc T5-7 Paper2 Covercrossfield.co.uk/doc/2005_sc_3_5-7_Paper2.pdf · 1ai 1 mark 1aii 1 mark 1aiii 1 mark 1aiii 1 mark 1. The drawing below shows a garden water feature