Science Revision Questions – hard

Common Entrance Revision: Includes more advanced questions
15 questions suitable for CE or scholarship
KS3 Levels 5 and 6
Answer all 15 questions and then press ‘Submit’
Your score and any corrections will then be shown

1. Gunpowder was invented by
2. If a substance contains only one kind of atom it is most likely to be
3. Neurons are found mainly in what part of our body?
4. 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 0.3AIf A2 reads 0.1 amps what will be the reading on A3? 

 
5. Which planet is closest in size to the Earth?
6. A person who suffers from anaemia has what wrong with them?
7. The legs of a chair each have an area of 20cm2 .

The chair has  4 legs and a mass of 4kg.

If the chair had thinner legs (the area of each leg was less) what effects would this have?
8. Which of the gases below would not be found in the Earth's atmosphere?
9. 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

Which do you think was the healthiest boy?
 
10. Heat from the sun reaches us by