Grade 4 · Unit 5: Using units of measurement

Volume and capacity

Cubic centimetres and litres.

Packing boxes

Warehouses pack boxes tightly. They need to know the volume of each box. Volume is measured in cubic units.

Counting cubes

One layer has 5 × 3 = 15 cubes. There are 2 layers: 30 cubes. Volume = 30 cm³.

Capacity

Capacity is how much a container holds. 1 litre = 1000 ml. 1.75 l = 1750 ml.

Volume and capacity link

1 cubic centimetre holds 1 millilitre. A cube 10 cm on each side has volume 1000 cm³. It holds 1 litre.

What I learnt

• I can find volume by counting cubes and using l × w × h.
• I can convert litres and millilitres.
• I know 1 cm³ = 1 ml.