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. Four different substances are added to dilute sulphuric acid
Which of the substances would produce no reaction?
2. What is the name of the chemical which has the formula CH4 ?
3. How is a sperm different to an egg in a human?
4. ledWhat component does this electrical symbol represent?
5. submarineThe picture shows a submarine which is not moving.

There are two forces on the submarine: Upthrust (X) and gravity (Y) Which force is bigger?
6. The Earth is tilted slightly so one pole points towards or away from the Sun

The tilt of the Earth causes which of the following events?
7. Word equations for 4 different reactions are shown.
Which of them is an example of a neutralization reaction?
8. The diagram shows how an electromagnet can be made by passing an electric current through a coil of wire wrapped around a soft iron bar (an iron nail will do)

coilWhich of the options below will increase the strengthg of the magnet?(tick all that apply)

 
9. 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

slopeAccoding to the law of conservation of energy, energy can never be created or destroyed so in what form does the energy exist at postion Z?
 

 
10. Which of the following is the boiling point of water in degrees Fahrenheit?