liquid

A liquid is a substance that flows freely but of constant volume.

eg water

eg milk

eg oil

We measure the amount of liquid inside an object with litres (L) and milliltres (mL).

A litre is the amount of liquid that can fit inside a container that is 10cm by 10cm by 10cm (1000 cubic centimetres).

1 litre = 1000 millitres

eg Milk bottles can come in 1L, 2L or 3L bottles.

A container is a 3-dimensional (3D) object that can hold liquid.

The amount of liquid a container holds is called capacity.

eg A can of soft drinks holds 355mL of drink.

eg A milk bottle holds 2L of milk.

Liquid volume is the capacity of a container.

eg How many millilitres (mL) would the following cylinder hold?