1.
Cooking rice
(a)
Rebecca and Josh are cooking rice at home.
They measure some water in a jug.
1000
cm 3
500
How much water did they measure?
..................................................... cm3
1 mark
(b)
They put the water into a metal saucepan.
They put the saucepan on the cooker.
Why is metal a good material for the saucepan?
Tick ONE box.
It is very heavy.
It conducts electricity well.
It is opaque.
It conducts heat well.
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1 mark
(c)
After five minutes, the water starts to boil.
Josh puts the uncooked rice into the saucepan.
The metal saucepan is hot.
The wooden handle of the saucepan is still cool.
Explain why the wood is cool but the metal is hot.
......................................................................................................................
......................................................................................................................
1 mark
1
(d)
Rebecca and Josh must be careful with the hot saucepan, so that they
do not burn themselves.
Describe ONE other thing that might burn the children while they are
cooking the rice.
......................................................................................................................
1 mark
2.
Fabrics
(a)
Some children carried out two fair tests on three different fabrics, A, B and C.
First they hung a 100 g mass from the bottom of each fabric.
Secondly they soaked each fabric in water.
What is the name of the force pulling downwards on the 100 g mass?
......................................................................................................................
1 mark
(b)
The table shows the results of their two tests.
fabric A
fabric B
fabric C
how far the fabric
stretched, in cm
0
6
15
how much water was
soaked up, in cm3
35
52
9
Some children wanted a fabric which does not stretch.
Which fabric should they choose?
Tick ONE box.
A
B
C
1 mark
(c)
Which fabric soaked up most water?
.........................................................................
(d)
1 mark
Use the information in the table to give TWO reasons why fabric C is better for
swimwear than fabric A.
(i)
.............................................................................................................
(ii)
.............................................................................................................
2 marks
2
3.
Materials
Tick ONE box to complete each sentence:
(a)
Plastic is used for trays because it
... is light
... bends
... floats
1 mark
(b)
Wood is used for matches because it
... floats
... snaps
... burns
1 mark
(c)
Steel is used for nails because it
... does not bend easily
... rusts
... is shiny
1 mark
4.
Absorbent materials
(a)
Absorbent materials soak up water well.
Kay and Robin have four equal strips of different types of paper.
They want to find out which is most absorbent.
They dip the strips into coloured water, then take them out again.
This picture shows the pieces of paper after they are taken out of the water.
How can you tell from the picture that material B has soaked up the most water?
......................................................................................................................
......................................................................................................................
1 mark
(b)
Circle TWO materials that soak up water well.
Kitchen roll
Cotton fabric
Plastic sheet Aluminium foil
1 mark
3
5.
Magnets
(a)
Vicky has a magnet in her hand.
There are some objects in the box.
Vicky is going to find out which objects are attracted by her magnet.
Compare the table of results by putting ONE tick so show the correct result for
each object.
One has been done for you.
is attracted
is not attracted
wooden pencil
steel safety pin
plastic bead
cardboard box
copper wire
2 marks
6.
Simple circuit
(a)
Sue has a cell (battery), some wire and a bulb.
She makes a simple circuit.
Sue joins these objects into the circuit, to see if the bulb lights:
cork
iron nail
plastic ruler
copper rod
steel spoon
She records her results in this table.
4
Object
A
B
C
D
E
Yes
No
Yes
spoon
Bulb lights?
No
Yes
Object B is the steel spoon.
Complete the sentences below to say what objects A and C are.
(i)
Object A is either the ......................................................…..... or
the .....................................................................................….......
1 mark
(ii)
Object C is either the ..........................................…............….. or
the ...........................................................................................….
1 mark
(b)
Some of the objects are electrical insulators.
Some are electrical conductors.
Use the information in Sue’s table. Write A, B, C, D and E in the correct
group below to sort the objects.
Electrical insulators
Electrical conductors
1 mark
(c)
David makes a circuit with two bulbs and one cell (battery).
He draws a picture of it.
In the space below, draw a circuit diagram of David’s circuit.
Use symbols.
1 mark
5
7.
Bath mat
(a)
Some children want to find the best fabric for making a bath mat.
They set up two different tests.
TEST 1 - Does the fabric slip easily on a smooth surface?
They slowly lift the ramp until the fabric starts to slide.
Here are the results of Test 1:
Fabric
Height of ramp when
fabric starts to slide (cm)
A
11
B
8
C
13
D
16
Look at the table.
Put the fabrics in order to show how easily each fabric slipped.
Write A, B, C, or D in each box.
Slipped
easily
Did not
slip easily
1 mark
(b)
What is the name of the force that makes it hard for the fabric to start moving?
......................................................................................................................
1 mark
(c)
TEST 2 - Does the fabric absorb water?
The children pour the same amount of water onto each fabric.
They hold up the fabric to let the water drip off.
6
Here are the results of Test 2:
Fabric
Observations
A
Almost no water drips off.
B
Nearly all the water drips off.
C
Some of the water drips off.
D
No water drips off.
Look at the table.
Put the fabrics in order to show how absorbent each fabric was.
Write A, B, C, or D in each box.
Most
absorbent
Least
absorbent
1 mark
(d)
Look at the results of Test 1 and Test 2.
(i)
Which fabric will make the best bath mat?
.....................................................
1 mark
(ii)
Give TWO reasons why the fabric you chose is better than the other fabrics.
1. .........................................................................................................
1 mark
2. .........................................................................................................
1 mark
8.
Temperature Changes in Drinks
(a)
Rashida wants to test if a polystyrene container keeps her drink hot for longer.
She makes her drink from boiled water.
She measures the temperature in two plastic cups (A and B) every ten minutes
with sensors joined to a computer.
to computer
cup A
cup B
temperature
sensors
polystyrene
container
The graph below shows her results.
7
90
80
70
60
Temperature
of drink (°C) 50
cup A
40
30
cup B
20
10
0
0
40
80
120
160
200
Time (minutes)
240
280
How does the graph tell you that the drink in cup B cooled more quickly than the
drink in cup A in the first 40 minutes?
......................................................................................................................
......................................................................................................................
1 mark
(b)
Use the graph.
Estimate the temperature of the room.
....................................................°C
1 mark
(c)
Which of the following best describes the polystyrene around cup A?
Tick ONE box.
thermal insulator
thermal conductor
warming material
cooling material
1 mark
(d)
Using a polystyrene container or cup is a good way for Rashida to help stop heat
leaving her drink.
Describe another way Rashida could help stop heat leaving her drink to keep it
hot for longer.
......................................................................................................................
1 mark
8
9.
Identifying Materials
(a)
Kate and Ravi discussed the materials some things were made from.
Complete each sentence below by writing ONE correct letter in each box.
Use a letter only once.
A – an electric
insulator
B – transparent
D – an electric
conductor
C – absorbent
E – waterproof
(i)
Slate is used for roofs because it is
(ii)
Glass is used for windows because it is
(iii)
Plastic is used for the outside of the electric cable because it is
3 marks
(b)
Anna investigated some other materials.
She recorded the properties of each material in a table.
Complete the table.
The first row has been done for you.
Properties
Materials
magnetic
transparent
conducts
electricity
waterproof
steel nail
yes
no
yes
yes
newspaper
.......
.......
.......
.......
wax candle
.......
.......
.......
.......
copper pipe
.......
.......
.......
.......
3 marks
9
10.
Rocks
(a)
Jo and Kelly tried scratching rock samples with a fingernail and with steel. A
fingernail is quite soft. Steel is hard.
They recorded their results.
Rock
Scratched with
fingernail
steel
= made a scratch
chalk
flint
= did not make
a scratch
granite
sandstone
Which is the softest rock in the table?
......................................................................................................................
1 mark
(b)
Use the table to decide if steel is harder than flint.
Tick ONE box.
yes
no
maybe
can’t tell
1 mark
(c)
Explain your answer to part (b).
......................................................................................................................
......................................................................................................................
1 mark
(d)
Name ONE rock in the table which is harder than sandstone.
......................................................................................................................
1 mark
11.
Materials
(a)
Sarah and Rob are investigating the properties of materials.
They compare wood, steel, paper, wax, aluminium and copper.
10
They use a key to sort the materials.
Complete the key by writing wood, steel, paper and wax in the correct answer
boxes at the bottom of the key.
Use each word once.
You may put more than one word in an answer box.
Does it conduct electricity?
Yes
No
Is it attracted to a magnet?
Yes
Does it melt?
No
Yes
No
aluminium
copper
2 marks
12.
Train in the tunnel
(a)
Andrea wants a light bulb to light up when her toy train is pushed through a
tunnel. She makes an electric circuit for her toy train.
Andrea makes a tunnel and puts a strip of foil inside the tunnel roof.
The picture shows Andrea’s tunnel and the wiring on her train.
position of foil inside
the tunnel roof
foil
foil
strip 1
foil
strip 2
+
tunnel
bulb
–
cell (battery)
wire
The foil strips on the train act like a switch. When both foil strips on the train
touch the foil inside the tunnel roof, the bulb lights up.
Complete the circuit diagram below by drawing the switch and the bulb to show
the circuit on Andrea’s train.
(i)
(ii)
2 marks
11
(b)
Give ONE property of metal foil which makes it a good material for Andrea to use
as a switch.
.....................................................................................................................
1 mark
(c)
When only one foil strip on the train is touching the foil in the tunnel, the bulb
does not light up.
Complete the sentence to explain why the bulb does not light up.
The circuit ...................................................................................................
1 mark
(d)
The bulb on the train only lights up when all of the train is inside the tunnel.
Andrea wants to improve her circuit so the bulb lights up when the train has only
just entered the tunnel.
Which train has foil strips that would allow the bulb to light when the train has only
just entered the tunnel?
Tick ONE box.
+
–
+
–
+
–
+
–
1 mark
13.
Measuring temperature
(a)
Some children want to find out which material keeps a drink hottest. They fill three
cups with hot water.
metal cup
polystyrene cup
plastic cup
They measure the temperature of the water. It is the same in each cup.
What equipment do they use to measure the temperature of the water?
......................................................................................................................
1 mark
(b)
They leave all the cups in the same place to cool.
12
What else must the children keep the same for their test to be fair?
Tick TWO boxes.
The size of each cup.
The material used to make the cups.
The final temperature of the water
The volume of hot water in each cup
1 mark
(c)
They measure the temperature again after 20 minutes.
In their test, the polystyrene cup keeps the water hottest.
Write metal, polystyrene and plastic in the correct order in the boxes below, to
show how well each insulates heat.
Good insulator
of heat
Poor insulator
of heat
1 mark
(d)
The children want to record their results on a graph.
Which graph would best show the results at the end of their test?
Tick ONE box.
Starting
temperature
(°C)
Temperature
after 20
minutes
(°C)
metal polystyrene plastic
metal polystyrene plastic
Material
Material
Time
cups were
left to cool
(minutes)
Time taken
to reach
25°C
(minutes)
metal polystyrene plastic
metal polystyrene plastic
Material
Material
1 mark
13
14.
Keeping Warm
(a)
A girl is trying to find out if cotton wool is good at keeping things warm.
She puts equal amounts of water at 60°C into two jars.
thermometer
hot water
cotton wool
jar A
jar B
She measures the temperature every five minutes.
The graph shows how the water cooled in jar A for 25 minutes.
Draw a line on the graph to show how the water cooled in jar B for 25 minutes.
temperature in ºC
70
60
50
40
30
20
10
0
5
10 15 20
time in minutes
25
2 marks
(b)
Materials which are not good at keeping things warm are called thermal
conductors.
What is the name given to all materials which are good at keeping things warm?
......................................................................................................................
1 mark
15.
Bathtime
(a)
Jack gets out of the bath. He dries himself with a towel.
Why is towelling a good material to dry himself with?
......................................................................................................................
1 mark
14
(b)
Small puddles of water drip on to the floor tiles and stay there.
Tick ONE box to say why the puddles stay on the floor tiles.
The puddles stay on the floor because the floor tiles
soak up water.
bend easily.
are waterproof.
are solid.
1 mark
(c)
The bathroom window is closed.
Jack sees drops of water on the inside of the bathroom window.
Name the process that causes the water to appear on the bathroom window.
......................................................................................................................
1 mark
(d)
The flow diagram below shows where the water goes before it reaches the
window.
Complete the flow diagram to show where the water is.
water in
the bath,
water in
in the towel
and on the
...........................
water on
the window
floor tiles
1 mark
(e)
Jack dries his hair with an electric hairdryer. He does not use the hairdryer in the
bathroom because it might get wet.
Why is it dangerous to use an electric hairdryer near water?
......................................................................................................................
......................................................................................................................
1 mark
15