NCERT Revision Notes for Class 3 Maths Chapter 11: Filling and Lifting – Free PDF Download

Chapter 11 of Class 3 Maths, Filling and Lifting, introduces measurement of capacity (how much liquid a container can hold) and weight (how heavy an object is), using standard units like litres and kilograms.

Last Updated: September 23, 2026

Key Concepts

Capacity: the amount of liquid a container can hold, measured commonly in litres (L) and millilitres (mL).

Weight: how heavy an object is, measured commonly in kilograms (kg) and grams (g).

Comparing capacity: deciding which of two containers holds more or less liquid, either by estimation or by measuring.

Comparing weight: deciding which of two objects is heavier or lighter, using a simple balance or known weights.

Adding and subtracting measurements: combining or finding the difference between two capacities or weights, similar to regular addition and subtraction.

Worked Examples

Example 1

A bottle holds 2 litres of water and another holds 3 litres. How much water do both bottles hold together? 2 L + 3 L = 5 L.

Example 2

A bag of rice weighs 5 kg and a bag of sugar weighs 2 kg. How much heavier is the rice bag? 5 kg − 2 kg = 3 kg heavier.

Example 3

Which holds more water: a bucket or a spoon? A bucket holds far more water than a spoon.

Quick Recap

• Capacity measures how much liquid a container can hold, using litres and millilitres.
• Weight measures how heavy an object is, using kilograms and grams.
• Comparing capacity or weight can be done by estimation or by actual measurement.
• Adding and subtracting capacities or weights works the same way as adding and subtracting regular numbers, keeping the units consistent.
• Everyday objects, like water bottles and grocery items, are useful for practising these ideas.

Common Mistakes to Avoid

• Mixing up capacity (how much a container holds) with weight (how heavy something is).
• Adding or subtracting measurements without keeping the units, like litres and kilograms, consistent.
• Assuming a bigger-looking container always holds more liquid, without considering its actual shape and depth.
• Assuming a bigger-looking object is always heavier, without checking its actual weight.
• Confusing millilitres and litres, or grams and kilograms, while solving conversion-related questions.

Home Practice Tips

• Compare the capacity of different containers at home, like a cup, a bottle, and a jug, by estimating and then checking with water.
• Check the weight labels on grocery items, like packets of rice or sugar, and compare them.
• Practise simple addition and subtraction problems involving litres or kilograms.
• Use a kitchen or bathroom scale, if available, to weigh a few household items together.
• Talk about which everyday container holds more or less during daily activities like cooking.

Frequently Asked Questions

Q1. What is the difference between capacity and weight?
Capacity measures how much liquid a container can hold, while weight measures how heavy an object is; they are measured using different units and tools.

Q2. What units are used to measure capacity and weight in this chapter?
Capacity is measured in litres and millilitres, while weight is measured in kilograms and grams.

Q3. How can I help my child compare capacity and weight at home?
Use real containers and grocery items, encouraging the child to estimate first and then check using measuring cups or a scale where possible.

Q4. Why do children sometimes confuse a bigger-looking object with a heavier one?
Size and weight are not always directly related, since a large but light object, like a balloon, can weigh less than a small but dense object, like a stone.

Q5. How does this chapter connect to other measurement chapters?
It extends the length measurement skills learned earlier to two new types of measurement, capacity and weight, using the same ideas of units, comparison, and simple addition or subtraction.

Full walkthrough: Chapter 11 Solutions for step-by-step textbook answers.

Written by Satish

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