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Mass Measurement and Conversion

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Mass Measurement and Conversion

Mass Measurement and Conversion

Kitchen scales with various objects

⚖️ Part 1: Understanding Mass Units

1. Circle the correct answer: How many grams are in 1 kilogram?

10 grams

100 grams

1000 grams

10,000 grams

2. Which unit would be most appropriate for measuring these objects? Circle your choice:

a) A paperclip:

grams
kilograms

b) A bag of flour:

grams
kilograms

c) A pencil:

grams
kilograms

d) A laptop computer:

grams
kilograms

🔄 Part 2: Converting Between Units

3. Convert these measurements from grams to kilograms:

a) 500 g = _______ kg

b) 1500 g = _______ kg

c) 750 g = _______ kg

d) 2300 g = _______ kg

4. Convert these measurements from kilograms to grams:

a) 1.2 kg = _______ g

b) 0.5 kg = _______ g

c) 3.75 kg = _______ g

d) 0.25 kg = _______ g

📏 Part 3: Estimation and Measurement

5. Look at the objects around your classroom. Estimate their mass, then measure if possible:
Object Estimate Actual Measurement Unit Used
Apple _______ _______ _______
Water bottle _______ _______ _______
Textbook _______ _______ _______
6. Explain why you chose grams or kilograms for each object:

🧮 Part 4: Problem Solving

7. Sarah is baking a cake. The recipe calls for:
  • 500 g flour
  • 0.25 kg sugar
  • 200 g butter

What is the total mass of these ingredients in grams? Show your working.

Answer: _______ grams

8. A sports bag contains:
  • Rugby ball: 450 g
  • Water bottle: 0.6 kg
  • Towel: 300 g
  • Shoes: 1.2 kg

What is the total mass in kilograms? Show your working.

Answer: _______ kg

🎯 Part 5: Quick Check

9. True or False? Tick the correct boxes:

1500 g is the same as 1.5 kg

Grams are better for measuring heavy objects

0.75 kg equals 750 g

A feather should be measured in kilograms

10. Match the measurement with the most likely object:
1. 5 g
2. 150 g
3. 2.5 kg
4. 25 kg
A. Bag of potatoes
B. Coin
C. Apple
D. Large dog

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