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

1. Which single piece of apparatus would be the best to use if you wished to find the volume of glass in a glass stopper
 
 
 
 

Question 1 of 30

2. 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 2 of 30

3. An acid would have what pH number?
 
 
 

Question 3 of 30

4. What is meant by your ‘pulse’
 
 
 
 

Question 4 of 30

5. A ball is held in place at the top of a slope at position X
When the ball is released it rolls down the slope, eventually coming to rest at position Z

slopeAt what position does the ball have the most kinetic energy? 

 
 
 
 

Question 5 of 30

6. To which group of animals does a frog belong ?
 
 
 
 

Question 6 of 30

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

Question 7 of 30

8. The Sun feels hotter in summer in England because….
 
 
 
 

Question 8 of 30

9. Name a non-metallic element that conducts electricity
 
 
 
 

Question 9 of 30

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

Question 10 of 30

11. Jane has two bowls on her bench.
One contains fine brown sugar. The other contains sand.
To find out which was which she stirred each into some warm water. Which will dissolve?
 
 
 
 

Question 11 of 30

12. The circuit diagram shows 4 components represented by circuit symbols

circuit1Which of the symbols represents a LDR (light dependent resistor)?
 
 
 
 

Question 12 of 30

13. Which of these substances aree electrical insulators?
 
 
 
 

Question 13 of 30

14. What type of food do carnivores usually eat?
 
 
 
 

Question 14 of 30

15. Tick TWO raw materials needed by plants to carry out photosynthesis
 
 
 
 

Question 15 of 30

16. A substance has a melting point of -39C and a boiling point of 357C. At normal room temperature would it be a
 
 
 

Question 16 of 30

17. What causes day and night?
 
 
 
 

Question 17 of 30

18. apparatus3What is the purpose of the piece of apparatus shown?
 
 
 
 
 

Question 18 of 30

19. A liquid with a pH of 2 would be described as …..
 
 
 
 

Question 19 of 30

20. What is the normal pulse rate of a boy or girl while resting ?
The answer is in beats per minute (bpm)
 
 
 
 

Question 20 of 30

21. Seeds need light in order to start to germinate
 
 

Question 21 of 30

22. Pick the best description to describe the word REFRACTION:
 
 
 
 

Question 22 of 30

23. Which organ is our body contains lots of neurons
 
 
 
 

Question 23 of 30

24. Which are smaller, bacteria fungi or viruses
 
 
 
 

Question 24 of 30

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

Question 25 of 30

26. 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 26 of 30

27. Photosynthesis is how plants make food

Why does photosynthesis usually stop at night?

 
 
 
 

Question 27 of 30

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

Question 28 of 30

29. A block measures 10cm x 8cm x 5cm
It has a mass of 2kg

What is the density of the block in g/cm³?

 
 
 
 
 

Question 29 of 30

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

Question 30 of 30