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. Complete the word equation:
Hydrochloric acid + sodium hydroxide →     ?
2. Coal is made up mostly of which element?
3. Four different substances are added to dilute sulphuric acid
Which of the substances would produce no reaction?
4. A firework rocket is resting in its launcher at position 1.
After being lit the rocket climbs to position 3 (its highest point) from where it falls back to the earth, hitting the ground at position 5.

energy1In what form does the energy exist at position 1?
5. Sir Alexander Fleming (1881- 1955) is best remembered for..
6. Which of the following is not a force
7. What compound would be formed when copper combines with sulphur?
8. graph4The graph above shows the amount of a substance that dissolves in water at different temperatures.

At what temperature is the solubility of substance A exactly the same as the solubility of substance C?
9. forcesThe diagram shows a blue ball hanging from a string.

Which force arrow best represents the force of the string pulling on the ball?
10. If solid carbon dioxide (dry ice) is warmed it will: