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Volume and Capacity: Build, Count and Pour with Cubo

Volume and Capacity: Build, Count and Pour with Cubo

Learn volume and capacity by building cuboids from 1 cm³ cubes, comparing and estimating volumes, then pouring water to estimate millilitres and litres.

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What you'll learn

  • What volume means and why we measure it in cubic centimetres (cm³)
  • How to count cubes layer by layer, including hidden ones
  • Why a taller shape does not always have the greater volume
  • How to estimate an object's volume with a 1 cm³ cube model
  • The difference between capacity and the volume of liquid inside
  • When to use millilitres and when to use litres

Chapter by chapter

  1. Volume and cubic centimetres: counting 1 cm³ cubes Free to try

    Year 5 maths · 1

  2. Building cuboids and cubes from 1 cm³ cubes, layer by layer

    Year 5 maths · 1

  3. Comparing volumes: which cuboid has the greater volume?

    Year 5 maths · 1

  4. Estimating volume: modelling objects with 1 cm³ cubes

    Year 5 maths · 1

  5. Estimating capacity in millilitres and litres using water

    Year 5 maths · 1

  6. Grand Volume Challenge (10 questions) (10 questions)

What the chapters cover in the national curriculum in England:

  1. Year 5 maths: Estimate volume and capacity

About this adventure

Volume and Capacity is an interactive maths game that teaches children aged 8–11 to estimate volume by building cuboids from 1 cm³ cubes, and to estimate capacity using water. It matches Year 5 maths in England, and Cubo, a talking 1 cm cube, reads every line aloud.

Players stack cubes to see that volume is the space a shape takes up, measured in cubic centimetres (cm³). They count cubes layer by layer, use an X-ray view to find hidden cubes, and test whether the taller shape really holds more. Then they wrap a book, an apple and a pyramid in cube models to make estimates.

In the water chapter, children learn that capacity is how much a container can hold when full. They pour to a 600 ml mark, compare everyday containers from a 5 ml teaspoon to a bath, and find out that 1 cm³ of water is exactly 1 ml.

Questions and answers

What is the difference between volume and capacity?

Volume is the amount of space something takes up, while capacity is how much a container can hold when it is full. A jug with a capacity of 1 litre might hold only 600 ml of water, which is the volume of water inside.

What is a cubic centimetre?

A cubic centimetre (cm³) is the space taken up by a cube that is 1 cm long, 1 cm wide and 1 cm tall. Children find a shape's volume by counting how many of these cubes it is made from.

How do you find the volume of a cuboid by counting cubes?

Count the cubes in one layer, then add that number once for every layer. A cuboid with 6 cubes in each of 3 layers has a volume of 6 + 6 + 6 = 18 cm³, including any cubes hidden at the back.

What age is this volume and capacity game for?

The game is for children aged 8 to 11 and is pitched at Year 5, where estimating volume and capacity is taught in KS2 maths in England. Every line is read aloud and shown as a caption, so less confident readers can follow along.

What does the volume and capacity game include and how long does it take?

It includes five chapters with animated introductions, hands-on building and pouring activities, typed and multiple-choice questions, two optional warm-ups and a 10-question Grand Challenge. Playing everything takes about 50 minutes, and children can start any chapter from the map.

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