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. If solid carbon dioxide (dry ice) is warmed it will:
2. What is a saprophyte?
3. How many kilograms are in a tonne
4. What is the chemical formula for SALT (sodium chloride)?
5. Name three structures you may find in a plant cell but not an animal cell
6. Some copper foil is heated in a sealed test tube until the copper stops changing colour.
What colour does the copper become?
7. Where are the female gametes (ovules) in a plant found?
8. What type of acid is found in your stomach?
9. Which planet is closest in size to the Earth?
10. What inert gas is sometimes used to inflate airships and balloons?