Comparing Capacity
Capacity tells us how much a container can hold. Different containers can hold different amounts of liquid or other materials.
For example, a bucket can usually hold more water than a small cup.
Learning Objectives
- Understand what capacity means.
- Compare the capacity of containers.
- Use more and less correctly when comparing capacity.
- Recognise containers with similar capacity.
More and Less Capacity
Small Container → Less Capacity
A container with more capacity can hold more.
Comparing Containers
A bucket can usually hold more water than a small cup.
Cup → Less Capacity
Checking Capacity
We can compare capacity by filling one container and seeing how much it can hold. We can then compare it with another container.
Comparing the amount that containers can hold helps us understand which has greater or smaller capacity.
Same Capacity
Two containers can also have the same capacity, even if they look different.
Both containers can hold the same amount.
Common Mistakes
- Do not confuse capacity with the amount currently inside a container.
- A container may look tall but not always hold more.
- Look at how much the container can hold when comparing capacity.
Practice
1. Which usually has more capacity: a bucket or a small cup?
2. What does capacity tell us?
3. Which has less capacity: a glass or a large bucket?
4. Can two containers have the same capacity?
Try It Yourself
Find two containers at home. Think about which one can hold more water and which one can hold less.
Quick Revision
- Capacity tells us how much a container can hold.
- More capacity means a container can hold more.
- Less capacity means a container can hold less.
- Two containers can have the same capacity.
What Comes Next?
You have learned to compare length, height, weight and capacity. Next, you will use these measurement ideas in everyday situations.