Characteristics of water

At what temperature does water normally boil?

• 100°C

• 0°C

• 20°C

• -10°C

Which of the following is the gas form of water?

• water

• ice

• vapour

• mist

Which of the following sentences is NOT true?

• Water is transparent.

• Water vapour is visible.

• Water is colourless.

At what temperature does water start to freeze?

• 10°C

• 5°C

• 0°C

• -5°C

A soluble substance...

• can dissolve in water.

• cannot dissolve in water.

Sand cannot dissolve in water. So sand is...

• soluble

• insoluble

The 3 states of water are:

• - solid

  - liquid

  - snow

• - solid

  - liquid

  - gas

• - ice

  - snow

  - rain

• - hail

  - ice

  - snow

Water in the gas state is called water vapour.

When it occurs at 100°C or more, we also call this vapour...

• fog

• mist

• steam

• condensation

Our body is made of 2/3 of water.

If we don't have enough water in our body, it will not work properly.

We call this...

• precipitation

• dehydration

• condensation

• evaporation

Clouds are formed by…

• condensation

• precipitation

• collection