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Primary Maths · Year 1Chapter 8 · Mass and capacity
Year 1 · Mass and Capacity · Summary

Year 1 Mass and Capacity: summary and key words

Part of the Year 1 mass and capacity chapter. Chapter overview · whole chapter on one page

Chapter summary

SkillMethod
Heavy and lightThe side of the balance scale that goes down is the heavier side.
Heavier and lighterCompare two things on a scale. Use the words heavier than or lighter than.
Counting cubesAdd cubes until the scale is level. Count the cubes. That is how heavy it is in cubes.
Full and emptyA full container has no room for more. An empty container has nothing inside.
Half and quarter fullHalf full is halfway up. Quarter full is a quarter of the way up. Four quarters make one whole.
Measuring with cupsFill the container with cups and count them. The number of cups is how much it holds.

Can you…?

  • I can say which object is heavy and which is light
  • I can say which thing is heavier than another, using a balance scale
  • I can count cubes to find out how heavy something is
  • I can say which container is full, empty or part full
  • I can say which container holds more, by counting cups
  • I can say what half full and quarter full mean

Key terms

mass
how heavy something is
heavy and light
heavy means it weighs a lot; light means it weighs less
heavier than
weighs more than another thing
lighter than
weighs less than another thing
balance scale
a scale with a pan on each side, which shows which side is heavier
cube
a non-standard unit we count to measure how heavy something is
capacity
how much a container can hold
full
there is no room for more
empty
there is nothing inside
half full
the water reaches halfway up the container
quarter full
the water reaches a quarter of the way up the container
cup
a non-standard unit we use to measure capacity

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