7. Measurement

Lesson

How can we estimate capacity ?

Choose the best estimate for the capacity of a tea cup.

A

250 millilitres

B

1 litre

C

500 millimetres

Worked Solution

Idea summary

We often use millilitres \text{(mL)} and litres \text{(L)} to measure the capacity of liquids.

We can use capacities of known containers to estimate the capacities of other containers.

How do we know which unit of capacity to use?

Choose the most appropriate unit of measure for finding the amount of water in a clothes washing machine.

A

Millilitres

B

Litres

Worked Solution

Idea summary

A millilitre is about the size of a drop of water.

A litre is about the size of a milk carton.