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

1. The respiratory system describes which part of our body?
 
 
 
 

Question 1 of 30

2. Day and night is caused by
 
 
 
 

Question 2 of 30

3. If water is added to anhydrous copper sulphate what would be the colour of the product?
 
 
 
 

Question 3 of 30

4. This image shows the magnetic field lines around a bar magnet

bar-magnetWhich end of the magnet will be north, A or B?
 
 

Question 4 of 30

5. What object is at the centre of our solar system
 
 
 
 

Question 5 of 30

6. Word equations for 4 different reactions are shown.
Which of them is an example of a displacement reaction?
 
 
 
 

Question 6 of 30

7. What will iodine do when heated in an open test tube?
 
 
 
 

Question 7 of 30

8. Where would you find villi in the human body?
 
 
 
 

Question 8 of 30

9. Name a chemical that decomposes to form oxygen when it is heated
 
 
 
 

Question 9 of 30

10. body5What is the name of organ ‘H’
 
 
 
 

Question 10 of 30

11. Which would be the best substance to neutralize some spilt hydrochloric acid?
 
 
 
 

Question 11 of 30

12. When does respiration take place in a plant?
 
 
 
 

Question 12 of 30

13. circuit3If I unscrewed bulb B from its holder what would happen to the other bulbs?
 
 
 
 

Question 13 of 30

14. What are microbes?
 
 
 
 

Question 14 of 30

15. What is the length  of time between fertilization and the birth of a human baby?
 
 
 
 

Question 15 of 30

16. What type of animal is an omnivore?
 
 
 
 

Question 16 of 30

17. What does ‘translucent’ mean?
 
 
 
 

Question 17 of 30

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

Question 18 of 30

19. Some copper foil is heated in a sealed test tube until the copper stops changing colour. What gas is the copper reacting with?
 
 
 
 

Question 19 of 30

20. What process would be best used to obtain pure water from sea water?
 
 
 
 

Question 20 of 30

21. Protein is good in our diet because it
 
 
 
 

Question 21 of 30

22. bunsen1bThis diagram shows a Bunsen burner.
The flame is yellow and smoky.

Is the air hole open or closed?
 
 

Question 22 of 30

23. 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 23 of 30

24. Which of the following animals is an INSECT (has six legs))
 
 
 
 

Question 24 of 30

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

Question 25 of 30

26. What colour would Universal Indcator turn when added to a neutral liquid?
 
 
 
 

Question 26 of 30

27. The circuit below shows 3 lamps (P, Q and R) and 4 ammeters (A1, A2, A3 and A4)
The lamps are all similar to each other.

ammetersA1 reads 0.3A
If A2 reads 0.2amps what will be the reading on A3?
 
 
 
 

Question 27 of 30

28. When copper foil is heated with a roaring bunsen flame and it quickly turns black.
What is the name of the black chemical formed?
 
 
 
 

Question 28 of 30

29. Camels have wide feet.
How does this help them walk on sand?
 
 
 
 

Question 29 of 30

30. Scurvy, an illness that used to occur a lot in sailors taking long sea voyages, is cause by
 
 
 
 

Question 30 of 30