Cambridge Primary Checkpoint Past Papers - Science - Paper 1

All living things have different life processes.
Write down the life process in the table next to the definition.
The first one has been done for you.

1.1 
1.2

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The Earth rotates on its axis.
Write down how long the Earth takes to make one complete rotation on its axis: day

The Earth rotates on its axis.

Which of these sentences is true?

Kofi has built an electrical circuit.

(a) The lamps are off.
What does Kofi do to turn the lamps on?: the switch

(b) In the space below draw the circuit diagram for this electrical circuit.
Use circuit symbols.

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Complete these sentences.
Cables and wires need to be good electrical conductors.
They are made of 5.1.
For safety, wires are covered with materials that do not conduct electricity.
The wires are covered with 5.2.
Any material that is a non-conductor is an 5.3.

Rosie is playing a drum. She increases the pitch of the note made.

What does Rosie have to do to increase the pitch? Choose the correct answer. 

Which of these statements is true?

Elena is investigating the melting point of different salt solutions.
- she makes a salt solution using 10 cm3 of water with a known mass of salt.
- she puts the salt solution into a freezer and leaves it to freeze.
- she takes the frozen salt solution out of the freezer.
- she measures the temperature when the frozen salt solution melts.
- she repeats each experiment.
Here are her results.

(a) What happens to the frozen salt solution when it melts?: 8.1.

(b) What is the melting point of pure water?: 8.2°C.

(c) Complete the sentence about the pattern shown by the results.
The 8.3 the mass of salt in the solution the 8.4 the melting point.

(d) One temperature in the second set of results does not fit the pattern.
Which temperature? 8.5. 

(e) Why did Elena collect two sets of results?: 8.6.

Samir is flying a kite.
There is a strong wind blowing.
The picture shows the forces on the kite.

(a) Which letter shows the gravitational force on the kite?: 9.1.
Which letter shows the pulling force Samir exerts?: 9.2.
Which letter shows the pulling force of the wind?: 9.3.

(c) The strength of the wind increases.
The kite stays in the same place.
What happens to the pulling force that Samir exerts?: 9.4.

Samir is flying a kite.
There is a strong wind blowing.
The picture shows the forces on the kite.

(b) Which two forces balance?
Choose the correct answer.

All animals eat to give them energy.

(a) Here is some information about a food chain in the sea:

"Penguins eat fish.

Fish eat green plants called plankton"

Use the information to draw a food chain in the boxes.

(1): 11.1;

(2):11.2;

(3):11.3.

(b) Here is some information about a food chain in a woodland.:

"Owls eat small birds.

Small birds eat insects.

Insects eat tree leaves.".

Use the information to complete this food chain.

Draw arrows to show the direction that energy is flowing.:

(1): 11.4;

(2):11.5;

(3):11.6.

Gaynor knows that birds have hollow bones like a tube.
This helps birds to fly.
She is investigating how the diameter of hollow tubes changes the strength of the tube.
Here is her apparatus.

Here are her results.

(a) Which diameter tube is the strongest?:12.1.

(b) Gaynor says her results are not very useful.
The investigation can be improved by using different materials for the tubes.
Write down two other ways Gaynor can improve her investigation.
1. ________________________________________;
2. ________________________________________.

(c) Why can hollow bones help birds fly?: 12.2.

Chen crushes some coffee beans into a powder and adds boiling water.

(a) Why does the water turn brown in stage 2?: 13.1.

(c) Use these words to complete the sentences about stage 3.:
"filtrate; mixture; residue; solvent".
The brown solid on the filter paper is the 13.2.
The brown solution in the beaker is the 13.3.

Chen crushes some coffee beans into a powder and adds boiling water.

(b) Chen then filters the mixture of coffee and water.

Some brown solid is left on the filter paper.

Choose the statement that explains this. 

Chen crushes some coffee beans into a powder and adds boiling water.

(d) Chen heats the brown solution.
Half of the water evaporates.
What happens to the color of the brown solution?

Choose the correct answer. 

Sara and Juan are investigating the distance seeds can be dispersed.
Here is the equipment they use.

Sara drops a seed near the fan.
Juan measures the distance the seed moves.
They repeat the test for five more seeds.
(a) They want to make it a fair test by always using the same size seed.
What two other factors do they keep the same?
1. __________________________.
2. __________________________. 
Here are their results.

(b) Plot their results on a bar chart.
The first two have been done for you.

(c) Sara thinks one of the results may be wrong.
Which one is it?
Seed number .

Sara and Juan are investigating the distance seeds can be dispersed.
Here is the equipment they use.

Sara drops a seed near the fan.
Juan measures the distance the seed moves.
They repeat the test for five more seeds.

(d) These seeds have all been dispersed by the same method.
Choose the correct method.