Year 3

# Mass and capacity

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## Lesson details

### Key learning points

- In this lesson, we will review the difference between mass and capacity by reading scales and estimating mass and capacity.

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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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### 4 Questions

Q1.

How many millilitres in 6L?

60000ml

600ml

60ml

Q2.

Fill in the blanks to make these statements correct.

Option 1

Option 2

Q3.

Match the correct statement to the image.

I know that the capacity of the bottle is 500ml. The egg cup looks about half the size of the bottle so I estimate that the egg cup has a capacity of 250ml

I know that the capacity of the bottle is 500ml. The egg cup looks slightly bigger than the bottle so I estimate that the egg cup has a capacity of 550ml

Q4.

Find the difference

375ml - 413ml = - 38ml

375ml - 413ml = -35ml

413ml - 375ml = 35ml

### 5 Questions

Q1.

What can mass and capacity be measured in?

Mass can be measured in millilitres and grams. Capacity can be measured in litres and kilograms.

Mass can be measured in millilitres and litres. Capacity can be measured in grams and kilograms.

Q2.

What is the mass of the ice-cream tub?

1kg

900kg

90g

Q3.

What is the capacity of the container? (Each interval = 25ml)

650ml

700ml

725ml

Q4.

Estimate the mass of the laptop.

I know the mass weighs 1g. The laptop feels four times as heavy as the weight so I estimate the mass of the laptop is 4000g

I know the mass weighs 1kg. The laptop feels four times as heavy as the weight so I estimate the mass of the laptop is 4000kg

I know the mass weighs 1kg. The laptop feels four times as heavy as the weight so I estimate the mass of the laptop is 400g

Q5.

Estimate the capacity of the wheelie bin.

I know the capacity of the water bottle is 10L. The wheelie bin looks 6 times larger than the bottle so I estimate the capacity of the wheelie bin is 600L

I know the capacity of the water bottle is 10L. The wheelie bin looks 6 times larger than the bottle so I estimate the capacity of the wheelie bin is 60ml

I know the capacity of the water bottle is 10ml. The wheelie bin looks 6 times larger than the bottle so I estimate the capacity of the wheelie bin is 60ml