Year 8 Chemistry quiz

Water has a boiling point of 100°C. At what temperature does water evaporate?

• 100°C only

• temperatures above 100°C

• temperatures above 0°C only

• water does not evaporate

At 2.5°C water is in ____________ state

The pH of substance that is slightly alkaline could be:

• 1

• 5

• 9

• 13

The pH of pure water is:

• 1

• 5

• 7

• 11

The colour of universal indicator in a substance that is very acidic is:

• green

• orange

• purple

• red

A gas can be squashed because:

• The particles are held tightly in place

• There are no particles

• The particles are far apart

• The particles are squashy

If you put a drop of coloured liquid into a glass of cold water and leave it to stand without stirring, the colour spreads through the water. What is this called?

• divination

• dissolving

• dissuasion

• diffusion