Understanding Units of Measurement

Name:

Date:

Measurement tools including rulers, scales, and measuring cups

📏 Part 1: Identifying Units and Systems

1. Which measurement system does New Zealand primarily use?

Imperial system

Metric system

Both equally

2. Match each measurement to the most appropriate metric unit by writing the letter:

a) Height of a person: _______ (A. millimetres, B. centimetres, C. metres, D. kilometres)

b) Weight of a car: _______ (A. grams, B. kilograms, C. tonnes)

c) Amount of water in a swimming pool: _______ (A. millilitres, B. litres, C. kilolitres)

3. Which of these are imperial units? (Tick all that apply)

Inches

Kilograms

Pounds

Litres

Feet

🔄 Part 2: Metric Conversions

4. Complete these metric conversions:

a) 2.5 kg = _______ g

b) 1500 mL = _______ L

c) 350 cm = _______ m

d) 0.75 km = _______ m

5. Show your working for this conversion problem:

A recipe calls for 2.5 litres of water, but your measuring jug only shows millilitres. How many millilitres do you need?

6. Circle the larger measurement in each pair:

a) 500 g OR 0.6 kg

b) 1200 mm OR 1.5 m

c) 750 mL OR 0.8 L

🎯 Part 3: Real-World Applications

7. Explain why we might still encounter imperial units in New Zealand, even though we use the metric system:

8. Choose the most appropriate unit for measuring each item and explain your choice:

a) The length of your pencil: _____________ because _________________________

b) The weight of a bag of flour: _____________ because _________________________

c) Medicine dosage: _____________ because _________________________

9. Extension Challenge: A construction worker needs to order timber. The plans show 3.2 metres, but the supplier lists lengths in centimetres. How many centimetres should they order? Show your working and explain why precision is important in construction.