Colfes School 1 Colfe’s School Science Examination (Year 9, or, 13+ entry) Name……………………………………………. Candidate number…………………. Primary or Preparatory School…………………………………………… Date………………………… 1 ½ hour You should try to answer all the questions in this booklet. Try to be neat and careful. The exam will last for one and a half hours. You may tell your teacher if you finish early. Invigilator please complete: Time used by the candidate =
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Colfes School 1
Colfe’s School
Science Examination (Year 9, or, 13+ entry)
Name…………………………………………….
Candidate number………………….
Primary or Preparatory School……………………………………………
Date…………………………
1 ½ hour
You should try to answer all the questions in this booklet.
Try to be neat and careful.
The exam will last for one and a half hours.
You may tell your teacher if you finish early.
Invigilator please complete:
Time used by the candidate =
Colfes School 2
1. The drawing shows a plant called Tillandsia.
(a) (i) The leaves of this plant absorb light. Why do plants need light?
............................................................................................................. 1 mark
(ii) Tillandsia plants grow on the high branches of trees in rain forests.
not to scale
These plants cannot grow well on the lowest branches. Explain why.
..................................................................................................................... 1 mark
(c) Tyrannosaurus rex had thick scales covering its body. Which group did it belong to? Tick the correct box.
amphibians fish
reptiles mammals
1 mark
Maximum 5 marks
Colfes School 6
4. (a) The photograph below shows a team of dogs called huskies pulling a sledge across the ice.
Huskies need to survive in a cold climate. They must be able to pull a heavy sledge for a long time each day.
Which two features would a dog breeder look for when choosing huskies to breed from? Choose from the list of features below and give the reason for each choice.
blue eyes fierce nature long tail
thick fur short legs strong muscles 1. feature .........................................................................................................
1 mark reason .........................................................................................................
..................................................................................................................... 1 mark
2. feature ......................................................................................................... 1 mark
2. ................................................................................................................. 2 marks
(b) Which property in the list above explains why:
(i) copper is used in the cable of a television?
............................................................................................................. 1 mark
(ii) a lot of oxygen gas can be pumped into a very small container?
............................................................................................................. 1 mark
Maximum 4 marks
KEEP GOING
Colfes School 12
8. Sharna boiled some red cabbage in water. The cabbage-water turned purple.
heat
red cabbage purple cabbage-water
(a) (i) Sharna separated pieces of cabbage from the cabbage-water.
Which method did she use? Tick the correct box.
chromatography filtration
condensation freezing
1 mark
(ii) Sharna wanted to find out if the purple cabbage-water contained more than one coloured substance.
Which method did she use? Tick the correct box.
chromatography filtration
condensation freezing
1 mark
KEEP GOING
Colfes School 13
(b) Sharna mixed the purple cabbage-water with some other liquids. She wrote the colours of the mixtures in a table as shown below.
colour of cabbage-water mixed with liquid
Is the liquid acidic, alkaline or neutral?
liquid 1 red acidic
liquid 2 blue alkaline
liquid 3 purple neutral
Use the information in the table to answer parts (i) and (ii) below.
(i) Sharna mixed cabbage-water with colourless washing-up liquid. The mixture turned blue.
What does this tell you about the washing-up liquid?
............................................................................................................... 1 mark
(ii) Sharna then mixed cabbage-water with lemon juice. Lemon juice is acidic.
What colour was the mixture?
............................................................. 1 mark
(c) What is the name of a chemical which changes colour when it is mixed with acids
or alkalis? Tick the correct box.
filtrate indicator
non-metal solution
1 mark
maximum 5 marks
KEEP GOING
Colfes School 14
9. The table below gives information about three fuels that can be used in cars.
shows a substance is produced when the fuel burns. X shows a substance is not produced when the fuel burns.
fuel physical energy
released, some of the substances produced
when the fuel burns
state in kJ/kg carbon monoxide
sulphur dioxide
water
petrol liquid 48 000
hydrogen gas 121 000 X X
ethanol (alcohol)
liquid 30 000 X
(a) Which fuel, in the table, releases the least energy per kilogram (kg)?
..................................................................................................................... 1 mark
(b) Some scientists say that if hydrogen is burned as a fuel there will be less pollution. From the information in the table, give one reason why there will be less pollution.
..................................................................................................................... 1 mark
(c) Which of the three fuels in the table can be compressed into a small container?
................................................................... 1 mark
(d) Which gas in the air is needed for fuels to burn? Tick the correct box.
carbon dioxide
nitrogen
oxygen
water vapour
1 mark
Colfes School 15
(e) Petrol and ethanol are both fuels. Petrol is made from oil. Scientists say that oil could run out in 100 years. In some countries people plant sugar cane and use it to make ethanol.
..................................................................................................................... 1 mark
maximum 4 marks
15. Spots may be caused by bacteria in the skin. A researcher investigated the effect of spot-lotion on bacteria.
(a) He grew bacteria on the surface of jelly in a Petri dish.
At what temperature would the bacteria reproduce quickly?
Tick the correct box.
100°C 4°C
37°C –15°C
1 mark
Colfes School 25
(b) The researcher placed two small paper discs onto the surface of the jelly.
One disc had been soaked in spot-lotion. The other disc had been soaked in water. The diagrams below show the jelly at the beginning of the experiment and two days later.
paper disc soakedin spot-lotion
clear area
surface coveredwith bacteria
paper discsoaked in water
two days laterat the beginning of the experiment
Suggest what had happened to the bacteria in the clear area around the paper disc soaked in spot-lotion.
……………………………………………………………………………………….
………………………………………………………………………………………. 1 mark
(c) What was the control in this experiment?
……………………………………………………………………………………….
………………………………………………………………………………………. 1 mark
(d) Give two safety precautions the researcher should take to avoid contact with the bacteria.
1. ……………………………………………………………………………………
2. ……………………………………………………………………………………. 2 marks
Maximum 5 marks
Colfes School 26
16. Rhododendron plants grow bigger and faster than other plants.
The drawing below shows a man cutting down rhododendron plants.
(a) (i) Scientists think the rhododendron roots might produce a chemical that stops other plants growing nearby. Why does this help rhododendrons to grow?
............................................................................................................. 1 mark
(b) After the rhododendrons and their roots are cleared away there will not be any of the chemical in the soil. What will happen to the number of other plants growing there?
..................................................................................................................... 1 mark
KEEP GOING
Colfes School 27
(c) The drawing shows an insect called a weevil.
Weevils feed on the leaves of rhododendrons.
Draw a line from the rhododendron box to the word that describes the rhododendron. Draw a line from the weevil box to the word that describes the weevil.
rhododendron (plant)
weevil (insect)
carnivore
herbivore
predator
producer
2 marks
Maximum 5 marks
Colfes School 28
17. The drawings show six objects made from different materials.
not to scale
(a) Fill the gaps in the sentences below.
The objects are made from materials that are all types of ........................... 1 mark
All the materials are good conductors of electricity and ............................... 1 mark
(b) From the drawings above give one object that could rust.
...................................................................................................................... 1 mark
(c) The drawing below shows part of an electric cable and a plug.
(i) What material could be put around the wires to insulate them?
............................................................................................................. 1 mark
............................................................................................................. 1 mark
Colfes School 29
(d) Which pair of objects is attracted to a magnet? Tick the correct box.
1 mark
maximum 6 marks
18.
Gold, iron and magnesium are elements whichconduct electricity.
Sulphur and phosphorus are elements whichdo conduct electricity.
When iron and sulphur are heated together,they react to form a new substance called ironsulphide.
not
(a) From the substances named above, give:
(i) the name of a metal;
............................................................................................................. 1 mark
(ii) the name of an element which is a non-metal;
............................................................................................................. 1 mark
Colfes School 30
(iii) the name of an element which will rust;
............................................................................................................. 1 mark
(iv) the name of a compound.
............................................................................................................. 1 mark
(b) When magnesium and sulphur are heated together, they react. Write the name of the compound which is formed when magnesium reacts with sulphur.
...................................................................................................................... 1 mark
Maximum 5 marks
19. (a) Joseph and Meena did some experiments to show how new rocks can be formed.
(i) Joseph used the following materials.
sand pebbles water plaster
Joseph mixed these materials and left the mixture to go hard. The solid looked like this.
Rocks are grouped into three types: igneous, metamorphic and sedimentary.
Which of these types of rock is most like Joseph’s ‘rock’?
.......................................................... 1 mark
Colfes School 31
(ii) Meena took some crystals. She put them in a crucible and heated it until the
crystals melted. She let the crucible cool very slowly until the contents went solid. The solid she tipped out from the crucible looked like this.
Which of the three types of rock is most like Meena’s ‘rock’?
.................................................................. 1 mark
(b) Rocks can be broken by weathering when:
1. Water gets into cracks in rocks.
2. The water in the cracks turns to ice and expands.
3. The rocks split into smaller pieces.
What else must happen during this part of this weathering process? Tick two boxes.
The temperature stays the same.
The temperature falls below freezing point.
The temperature stays above freezing point.
Expansion forces the cracks in the rock to close.
Expansion forces the cracks in the rock to open.
Expansion forces all of the water out of the cracks.
2 marks
Maximum 4 marks
Colfes School 32
20. A Japanese volcano erupted in 1936. Molten sulphur poured out of the volcano.
When it cooled it formed rock sulphur.
older volcanic rocks solid rocksulphur
moltensulphur
(a) (i) Which word describes molten rock that is underground? Choose from lava or magma or oil.
……………………………………… 1 mark
(ii) Which type of rock do volcanoes produce? Choose from igneous or metamorphic or sedimentary.
……………………………………… 1 mark
(b) Sulphur is a non-metallic element. It is yellow and melts at 115°C.
Complete the sentences about sulphur.
(i) Sulphur is a poor conductor of
……………………………………… 1 mark
(ii) At 115°C sulphur changes from
a …………………………………… into a …………………..…………… 2 marks
(c) Sulphur burns in air to form an oxide. What gas in the air reacts with sulphur when it burns?
……………………………………… 1 mark
Maximum 6 marks
KEEP GOING
Colfes School 33
21. Kala recorded temperatures using a datalogger and three temperature sensors,
P, Q and R. The ends of the sensors were covered with gauze. P was kept dry. Q was dipped in water for 2 seconds and then taken out. R was dipped in ethanol for 2 seconds and then taken out.
sensor P:dry gauze
sensor Q:gauze dippedin water
sensor R:gauze dippedin ethanol
Every five minutes, the datalogger recorded the temperatures of the sensors.
time, in min
temperature of sensor P, in °C
temperature of sensor Q, in °C
temperature of sensor R, in °C
0 20 20 20
5 20 18 16
10 20 17 12
15 20 17 20
(a) What was the temperature of the room at the beginning of Kala’s experiment?
..................... °C 1 mark
Colfes School 34
(b) Describe how the temperatures of sensor Q and sensor R changed.
sensor R ......................................................................................................
..................................................................................................................... 2 marks
(c) The next day the gauze on sensor Q felt dry. What had happened to the water on the gauze?
..................................................................................................................... 1 mark
Maximum 4 marks
22. The diagram below shows a pen.
The pen is held up by two magnets, one in the stand and the other in the pen.
N
S
magnet in stand
magnet in pen
pen
stand
(a) On the dotted lines above, label the North pole and the South pole of the magnet in the pen.
Use the letters N and S. 1 mark
Colfes School 35
(b) John put a block of metal between the two magnets as shown below.
N
S
magnet in stand
magnet in pen
stand
block of metal
The block of metal became a magnet.
(i) On the dotted lines above, label the North poles and the South poles of both the block of metal and the magnet.
Use the letters N and S. 1 mark
(ii) What metal could the block be made of?
............................................................. 1 mark
(c) John repeated the experiment using a piece of wood instead of a block of metal. The pen did not stay up. Give the reason for this.
........................................................................................................................ 1 mark
maximum 4 marks
Colfes School 36
23. A teacher has a small torch. He switches it on and points it towards a mirror.
torch
mirror
(a) A ray of light from the torch reflects off the mirror. Use a ruler to draw the ray of light:
(i) from the torch to the mirror; 1 mark
(ii) reflecting off the mirror. 2 marks
Add arrows to the rays to show the direction of the light.
(b) A laser beam is a very bright and powerful beam of light. It is very dangerous to point a laser beam towards people or animals. Which part of the body can be most easily damaged by a laser beam?
.................................................... 1 mark
Maximum 4 marks
KEEP GOING
Colfes School 37
24. Lee blew across the top of paper tubes to make sounds.
He investigated how changing the length of a tube affects the pitch of the sound.
(a) What equipment could he use to measure the length of the tubes?
Tick the correct box.
1 mark
(b) The photograph below shows the different lengths of tubes Lee used.
Suggest one way his test might not have been fair.
..................................................................................................................... 1 mark
Colfes School 38
(c) Lee made a prediction.
Which of these statements is a prediction? Tick the correct box.
The tubes were made of paper.
The pitch of the sound is how high or low it is.
The longer tube will make a lower sound.
The sound is caused by the vibration of air.
1 mark
(d) Lee blew across the ends of 3 different lengths of tube and compared the pitch of the sound produced.
His results are shown below.
Length of the tube, in cm
5
25
50
pitch of the sound
high
medium
low
Which length of tube made the sound with the highest pitch?
......................................... cm 1 mark
Maximum 4 marks
THE END.
Now go back and check your work, if you have time.
Colfes School 39
Year 9, or, 13+ entry: Science Examination
The following examination paper has been constructed from past SATs papers. Each question is taken from a separate section of the KS3 National Curriculum framework to provide a fair breadth of questions for pupils to show what they can do.
The twenty four sections, from which the twenty four questions have been taken, are:
a)Year 7 topics
Cells, Reproduction, Environment, Variation, Acids and alkalis, Chemical reactions, Particle model, Solutions, Energy resources, Electrical circuits, Forces and effects, Solar System and beyond
b) Year 8 topics
Food and digestion, Respiration, Microbes and disease, Ecological relationships, Atoms and elements,Compounds and mixtures, Rocks and weathering, The rock cycle, Heating and cooling, Magnetsand electromagnets, Light, Sound and hearing.
We are looking for knowledge, understanding, and, most importantly, academic potential.