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. What is the chemical symbol for gold?

G

Sn

Au

Ga

2. The cubes below all have the same volume.
The mass of each block is shown inside each cube.

Which substance has the highest density?

Aluminium

Water

Iron

Wood

3. What organ in our body contains valves?

Heart

Liver

Lungs

Brain

4. Burning coal converts chemical energy into what kinds of energy (tick TWO boxes)

Strain energy

Light energy

Kinetic enegy

Heat energy

5. How would you try to identify water vapour in the air?

To see if it relights a glowing splint

To see if it turns anhydrous cobalt chloride paper from blue to pink

To see if it burns with a squeaky pop

Bubble it through limewater which will go cloudy

It can fly

6. When copper foil is heated with a roaring bunsen flame and it quickly turns black.
What is the name of the black chemical formed?

Copper oxide

Magnesium oxide

Carbon

Carbon dioxide

7. Which of the following are examples of chemical changes

Boiling water

Burning paper

Melting chocolate

Dissolving salt in water

8. What is a 'pixel'?

A single unit of a computers memory

something that is so small you need a microscope to see it

A small animal that lives in a dessert

The smallest unit in a computer display

9. Some copper foil is heated in a sealed test tube until the copper stops changing colour. What gas is the copper reacting with?

Oxygen

Nitrogen

Hydrogen

The glass that the test tube is made from

10. A plant is an example of a producer.
Producers are living organisms that:

Make their own food by photosynthesis

Break down dead organisms for food

Eat other organisms for food

 Loading...