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

1. What would be the product when water is added to anhydrous copper sulphate?

Question 1 of 30

2. Name a substance with a pH value less than pH7

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3. Name a neutral liquid

Question 3 of 30

4. cuso4.3-300x225This apparatus is being used to collect the water produced when copper sulphate is heated.

Why is it an important safety requirement not to let the open end of the delivery tube touch any water in the beaker or test tube?

Question 4 of 30

5. What are the main features of a reptile?

Question 5 of 30

6. parachuteThe diagram shows a parachute falling.

What is the name of the force labelled X?

Question 6 of 30

7. Peter has three coloured felt pens which he labelled A, B and C.
He used the apparatus below to separate the dyes used to make colours from each of the pens.

Chromatography_tank2What is the name of the process being carried out? 

Question 7 of 30

8. What do we call something that does not allow light to pass through it?

Question 8 of 30

9. cell4Do you think this cell is from an animal or plant?

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10. What colour will universal turn when mixed with vinegar?

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11. Name the organ that supplies the embryo with food and oxygen

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12. A block of plastic has a volume of 6cm3 and a mass of 12g.
What is the DENSITY of the plastic?

Question 12 of 30

13. Metal is the best material for a radiator because it

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14. What process would be used to obtain the solvent from a solution?

Question 14 of 30

15. Arachnids’ are another name for which kind of animal

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16. What would be the effect on a habitat if all the herbivores suddenly died out

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17. Which part of our body removes soluble waste and excess water from the blood

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18. What word describes what happens to a light ray when it hits a mirror

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19. Why is the mineral calcium important in our diet?

Question 19 of 30

20. flower2The diagram shows the main parts of a flowering plant.

In which part of the plant is photosynthesis mainly carried out?

Question 20 of 30

21. If a gardener wished to make his soil less acid, which of the following would be the best to do?

Question 21 of 30

22. About 20cm of magnesium ribbon is chopped up into 1cm lengths and placed in a crucible which is then weighed along with its lid.

The crucible is heated strongly and the lid gently raised avery few seconds.

When the reaction is over a white ash could be seen in the crucible.
The crucible + ash + lid are all re-weighed

These are his results:
  • Mass of empty crucible + lid  = 51.2g
  • Mass of crucible + lid + magnesium (before heating) = 54.3g
  • Mass of crucible + lid + contents (after heating) = 54.7g

What is the name of the white ash that remains in the crucible after the experiment 

Question 22 of 30

23. This diagram shows a block of iron and a block of wood which have been added to a beaker of water.
Which would have the greatest density the water, wood or iron?

Question 23 of 30

24. Which of these facts is NOT true about a girl when her body reaches puberty

Question 24 of 30

25. Bones in the skeleton either protect or support organs.

What do the RIBS do?

Question 25 of 30

26. Pick the largest object from the list below


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27. Why do we need red blood cells?

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28. How many millilitres in a litre?

Question 28 of 30

29. parachute 

The diagram shows a parachute falling at a steady speed.

There are two forces on the parachute represented by red arrows

Which force is bigger?

Question 29 of 30

30. 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 metallic element ?

Question 30 of 30