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

1. Crude oil can be separated into different substances using what method of separation?

Question 1 of 30

2. Where does the embryo develop in the human body?

Question 2 of 30

3. bunsen2b-1This diagram shows a Bunsen burner.

Which is the hottest part of the flame?

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4. What are microbes?

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5. Which of the following is true about air?

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6. How is carbon dioxide made in the laboratory?

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7. circulation-graphThe graph below shows the heart rate of two boys, X and Y

Their teacher measured their pulse and then asked them to run on a running machine for 2 minutes

When their pulse had returned to normal the experiment was stopped

How long did it take the heart rate of boy Y to return to normal after he stopped running?

Question 7 of 30

8. Day and night is caused by

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9. What happens to sugar when you stir it into a cup of tea?

Question 9 of 30

10. cell4This is a diagram of a plant cell
What is the function of the chloroplasts?

Question 10 of 30

11. What will chocolate do when heated gently in an open dish

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12. Pick two instruments that you would need to find the density of glass in a marble?

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13. How many planets are in the Solar System?

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14. Galvanised iron sheets are made of iron coated with a very thin layer of which metal?

Question 14 of 30

15. 15g of copper foil is heated in a sealed test tube until the copper stops changing colour.
It was noticed that some of the copper was still pink.
After the experiment had cooled the tube was opened and then re-weighed.

These were his results:

Mass of tube + copper before heating = 75gMass of tube after heating = 75.3gApproximately what mass of oxygen was in the tube?

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16. What colour is hydrated copper sulphate

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17. What is the name of the chemical which has the formula CH4 ?

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

Question 18 of 30

19. You have four substances which you label A, B, C and D.
One is a mixture, one a metallic element one a non-metallic element and one a compound.

They have the following properties:
AA yellow, crumbly solid that burns to form a single, colourless gas which turns universal indicator red.
BA grey, malleable solid that burns to form a single, white, alkaline oxide.
CA colourless liquid. The liquid is warmed in a shallow dish and after a few minutes a white residue is seen.
DA green solid that decomposes when heated to form a colourless gas and leave a black powder.
Which of the substances is likely to be a mixture ?

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20. What type of animal is an omnivore?

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21. When clothes dry the water is

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22. What colour would Universal Indcator turn when added to a strong acid?

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

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24. If a violin string is going to make a sound it

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

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26. Why might we add iodine solution to a slice of food in the laboratory

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27. variable-resistorWhat is the name of this component?

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28. What is meant by the gestation period

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29. What are the main features of amphibian?

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30. How is a sperm different to an egg in a human?

Question 30 of 30