Heavy and Light
Some things are heavy and some things are light. A watermelon is heavy. A feather is light. In Class 1, children learn to compare the weight of objects using words like heavy, light, heavier, lighter, heaviest, and lightest.
We compare weight by lifting objects in our hands or by using a simple balance (see-saw).
What is Heavy and Light - Class 1 Maths (Measurement (Grade 1))?
Heavy means an object weighs a lot — it is hard to lift. Light means an object does not weigh much — it is easy to lift.
Key words:
- Heavier / Lighter — comparing two things
- Heaviest / Lightest — comparing three or more things
On a balance (like a see-saw), the heavier side goes down and the lighter side goes up.
Solved Examples
Example 1: Example 1: Heavy or Light?
Question: Which is heavier — a school bag full of books or an empty school bag?
Answer: A full school bag is heavier.
Example 2: Example 2: Compare Two Objects
Question: Ria holds a book in one hand and a pencil in the other. Which is lighter?
Answer: The pencil is lighter.
Example 3: Example 3: Using a Balance
Question: On a balance, an apple goes down and a cotton ball goes up. Which is heavier?
Think:
- The heavier object goes DOWN
- The apple went down
Answer: The apple is heavier.
Example 4: Example 4: Heaviest of Three
Question: A stone, a leaf, and a book. Which is the heaviest?
Answer: The stone is the heaviest.
Example 5: Example 5: Lightest of Three
Question: A brick, a balloon, and a mango. Which is the lightest?
Answer: The balloon is the lightest.
Example 6: Example 6: Word Problem
Question: Aman carries a watermelon and Dev carries an orange. Who is carrying the heavier fruit?
Answer: Aman is carrying the heavier fruit (watermelon).
Example 7: Example 7: Size vs Weight
Question: Priya has a big balloon and a small stone. Which is heavier?
Think:
- A balloon is big but very light — it is full of air
- A stone is small but heavy
Answer: The small stone is heavier. Bigger does not always mean heavier.
Key Points to Remember
- Heavy objects are hard to lift. Light objects are easy to lift.
- On a balance, the heavier side goes down and the lighter side goes up.
- Bigger does not always mean heavier. A big balloon is lighter than a small stone.
- Use heavier/lighter to compare two objects.
- Use heaviest/lightest to compare three or more objects.
Practice Problems
- Which is heavier — a pillow or a brick?
- Name 3 things in your kitchen that are heavy.
- Name 3 things that are very light.
- On a balance, a mango goes down and a grape goes up. Which is heavier?
- Put in order from lightest to heaviest: a car, a cat, and a chair.
- Aditi says a big cotton bag is heavier than a small iron ball. Is she right?
Frequently Asked Questions
Q1. What does heavy and light mean?
Heavy means an object weighs a lot and is hard to lift. Light means an object weighs less and is easy to lift.
Q2. How can I compare the weight of two objects?
Hold one object in each hand. The hand that goes lower is holding the heavier object. You can also use a simple balance.
Q3. Does bigger always mean heavier?
No. A big balloon is very light because it is full of air. A small stone can be much heavier. Size and weight are not the same thing.
Q4. What is a balance?
A balance is a tool used to compare weight. It has two sides. You place one object on each side. The heavier side goes down and the lighter side goes up.
Q5. What is the heaviest thing in a classroom?
The teacher's desk or a cupboard is usually the heaviest thing in a classroom. Children can discuss and compare.
Q6. Can two objects be equally heavy?
Yes. If two objects weigh the same, a balance stays level. Both sides stay at the same height. We say they are equal in weight.
