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Third/Weight Mass

Comparing weights using a balance scale ⚖️

Look at the balance scale and decide which object is heavier or lighter.
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Comparing weights using a balance scale ⚖️ preview

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Practice Questions

  1. On the left side: A 10kg weight 🏋️. On the right side: A 5kg weight 🏋️. Which side goes down? 📉
    Show answer

    Left side 👈

  2. Side A has 3 books 📚 (1kg each). Side B has 1 rock 🪨 (5kg). Which is heavier?
    Show answer

    Side B 👉

  3. The scale ⚖️ is balanced. Left side is 4kg of apples 🍎. Right side is Box X 📦. How heavy is Box X?
    Show answer

    4kg

  4. Which is lighter? (A) A 50g feather 🪶 (B) A 50kg rock 🪨
    Show answer

    (A) A 50g feather 🪶

Quick Tip
The heavier side of a balance scale goes down. The lighter side goes up. If weights are equal, it stays level.
Teacher Resources
Vocabulary
Balance scale: Tool to compare weights.
Heavier: Weighs more.
Common Mistakes
  • Confusing mass with size (large items can be light).
  • Thinking higher side is heavier.
Differentiation
Extension Activities
  • Compare household objects.
  • Use a real balance scale.
  • Draw your own scale.
Parent Tip

Let your child compare the weight of two toys.

Learning Path
Skill Level

beginner

Estimated Time

15 minutes

Skills Practiced
Comparing numbersIdentifying heavier object