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?
 
 
 
 

Question 3 of 30

4. What are microbes?
 
 
 
 

Question 4 of 30

5. Which of the following is true about air?
 
 
 
 

Question 5 of 30

6. How is carbon dioxide made in the laboratory?
 
 
 
 

Question 6 of 30

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
 
 
 
 

Question 8 of 30

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
 
 
 

Question 11 of 30

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

Question 12 of 30

13. How many planets are in the Solar System?
 
 
 
 

Question 13 of 30

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?
 
 
 
 

Question 15 of 30

16. What colour is hydrated copper sulphate
 
 
 
 

Question 16 of 30

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

Question 17 of 30

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 ?
 
 
 
 

Question 19 of 30

20. What type of animal is an omnivore?
 
 
 
 

Question 20 of 30

21. When clothes dry the water is
 
 
 
 

Question 21 of 30

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

Question 22 of 30

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

Question 23 of 30

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

Question 24 of 30

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

Question 25 of 30

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

Question 26 of 30

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

Question 27 of 30

28. What is meant by the gestation period
 
 
 
 

Question 28 of 30

29. What are the main features of amphibian?
 
 
 
 

Question 29 of 30

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

Question 30 of 30