Common Entrance Revision: 30 average and harder questions
KS3 Levels 4 and 5

1. What is the chemical formula for SALT (sodium chloride)?

Question 1 of 30

2. What happens to the current through a component if the voltage is increased?

Question 2 of 30

3. balanceThe diagram shows a log supported at its centre.
Peter is 1.5m from the centre and John is 2.5m from the centre.
How far will John have to move to make the log balance and in which direction?

Question 3 of 30

4. cell3This diagram shows three human body cells

Which one represents a sperm cell?

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5. A block measures 10cm x 8cm x 5cm
You are told that the block is made out of iron which has a density of 7g/cm³

What is the mass in kg?

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6. If you went to the moon what would happen to your mass?

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7. What percentage of the air is argon (approximately)?

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8. How many ‘equinoxes’ are there in a year?

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9. flowerLook at the diagram of a flower.
Where would you find the ovules?

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10. Which part of a cell contains the genetic material?

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11. Which of the energy changes below represents that which takes place in an electric motor?

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12. What form of energy is stored in a piece of coal?

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13. What type of object is the Sun

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14. What is the main reason a plant has leaves?

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15. Name an organ which helps digest food

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16. Which of the below is not an example of a chemical change?

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17. A section from an animals liver would be best described as

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18. What colour will universal turn when mixed with limewater?

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body5Which organ is the small intestine?

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20. When a gas changes to a liquid the process is called

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21. Wax is a compound of hydrogen and carbon (known as hydrocarbon).

What are the products of the reaction that takes place when wax burns completely in air.

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22. Where are the eggs made in an animal?

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23. Pick an acidic oxide from the list

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24. ledWhat component does this electrical symbol represent?

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25. What type of object is the Sun?

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Which piece of apparatus would be used to separate sand from seawater?

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27. Is Mercury metal a solid, liquid or gas?
(at normal room temperature)

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28. Put the following processes into the correct order if you wished to obtain pure salt from rock salt

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29. What is the unit for electrical current?

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30. Substances can be obtained from the ground and purified in a variety of ways.

Which mineral can be extracted from the ground by pumping water into the ground which causes it to dissolve. The substance is then purified by letting the water evaporate.

Question 30 of 30