Mathematics · Class 3
Who is Heavier?
Learn Who is Heavier? with notes, examples, and practice questions.
3 sections15–25 min read3 MCQs · 1 examples
Chapter Overview
1000 grams equal 1 kilogram.
Who is Heavier? introduces standard units of mass. Children choose grams or kilograms, read simple weighing scales, compare masses, and calculate how much heavier or lighter an object is.
Grams and Kilograms
- Use grams for light objects such as a pencil or biscuit.
- Use kilograms for heavier objects such as a schoolbag or child.
- Mass should be compared in the same unit.
Reading and Comparing Mass
- A scale mark shows a measured mass.
- Find how much heavier by subtracting the smaller mass.
- A balance is level when both sides have equal mass.
Solved Examples
Step-by-step solutions — read each step before checking the final answer.
Compare Two Bags
One bag has a mass of 7 kg and another has a mass of 4 kg. How much heavier is the first?
- 1Both masses are in kilograms.
- 2Subtract the smaller from the larger.
- 37 − 4 = 3.
Answer
3 kg heavier
Key Points to Remember
- ✓ Grams measure light masses
- ✓ Kilograms measure heavier masses
- ✓ Convert or use matching units before comparing
Exam Tips
- • Write g or kg in the answer
- • Read the scale interval carefully
Practice MCQs — Who is Heavier?
Test your understanding with topic-wise multiple choice questions. Explanations appear after each answer.
Question 1 of 3Score: 0/0
Which unit best measures an apple?