Science Revision Questions – Average

Common Entrance Revision: 10 Easy and harder questions
KS3 Levels 4 and 5
Answer all 10 questions and then press ‘Submit’
Your score and any corrections will then be shown

1. a = 5cm    b = 3cm   c = 3cmThe mass of the block = 90gblockWhat is the density of the block?
2. How many kilograms are in a tonne
3. What conditions does a young plant need to keep healthy
4. The picture shows a submarine.
There are two forces acting on the submarine
represented by red arrows.

What is the name of the force labelled X?
5. 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 the crucible + contents + 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 magnesium reacting with?
 
6. Neurons are found mainly in what part of our body?
7. Copper, iron, gold, and aluminium are all examples of what?
8. cell3This diagram shows three human body cells

Which one represents a sperm cell?
9. What is the unit for electrical current?
10. What colour will universal turn when mixed with limewater?