## The Metric System Exercise

1. Choose the most suitable units from millimetres, centimetres, metres or kilometres to measure:

 a. The length of your shoe b. The distance a bus travels in a week. c. The width of a paper clip d. The length of your classroom e. The distance from Australia to New Zealand f. The width of a flower stem

2. Using the set of units {centimetres, litres, metres, kilograms}
choose the most suitable unit to measure:

(a) The width of a line on a netball court.
(b) The capacity of a water tank.
(c) The weight of a set of large reference books.
(d) The height of the Sky Tower in Auckland.

3. Give the most suitable unit for measuring:

 a. The amount of petrol in the petrol tank of a car. b.The weight of a school bus. c.The distance from Sydney to London. d. The length of your classroom e. The time taken to run 100 metres. f. The weight of a rugby forward

4. True or false?

(a) 3 L of petrol is more than 375 mL of petrol.
(b) 356 seconds are less than 6 minutes.
(c) 5 kg of butter is more than 5500 g of butter.
(d) 100 cm is longer than 1.1 metres.

5. Change the measurements given into the units in brackets:

 a 2 kg (grams) b 16 km (metres) c 200 g (kilograms) d 4200 mL (litres) e 3.5 hours (seconds) f 45 mm (centimetres) g 8001 mg (grams) h 5.1 L (millilitres) i 82 metres (millimetres) j 34 cm (metres)

6. Copy and complete the table:

 kilograms grams milligrams 300 4 2500