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Choosing Measurement Units
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Choosing Measurement Units
Choose sensible units for measuring length, mass and capacity. Read each question carefully.
Choose a suitable unit
Select the best unit for each item.
1.Which unit would be most useful for measuring the length of a bike spanner?
- centimetres
- metres
- kilometres
2.Anh rides a long trail between towns. Which unit is best for the distance?
- centimetres
- metres
- kilometres
3.Matilda is checking how much water fits in a drink bottle. Which unit should she use?
- grams
- litres
- centimetres
4.Which unit would you use to measure the mass of a bike bell?
- grams
- litres
- metres
What are you measuring?
Match each item to the measurement that describes it.
5.Match each item with what you would measure about it. For the bike seat, choose how heavy it is.
- A bike seat
- A drink in a bottle
- A toolbox
- A handlebar
- How much liquid it holds (capacity)
- How long it is (length)
- How heavy it is (mass)
- How heavy it is (mass)
Complete with a unit
Write the most suitable unit in each blank.
6.A child might be about 125 tall.
7.A large juice bottle might hold 2 .
8.A school bag might have a mass of 3 .
9.A small sticker might be 3 long.
Explain and sort
10.Why is a smaller unit than a metre a better choice for measuring the length of a small bike key?
11.Select every item whose mass could sensibly be measured in grams.
- a banana
- a swimming pool
- a coin
- a sandwich
- a classroom
- a marble
Draw and think
12.Draw an object you might find in a bike repair shop that would be measured using a small unit of length. Label the unit you would use.
13.Draw a container that could hold about 1 litre of liquid. Write “litres” beside it.
14.Give one reason it is useful to choose a suitable measurement unit.
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