The answer sheet for the worksheet Heavy or light?. Each answer comes with the reason, so it can be used to mark or to go over the questions with the class.

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KS1 · Ages 5 to 7 (Years 1 and 2)Answer sheet for teachers

Answers: Heavy or light?

  1. A: Stay levelThings that weigh the same keep the balance level.
  2. D: 2 kilogramsIn order from lightest: 1, 2, 4. The middle one is 2 kilograms.
  3. B: 6 kilogramsStart at 4 and count on 2: 5, 6. The meteorite weighs 6 kilograms.
  4. False: the right answer is HeavierHeavier means it weighs more. Lighter means it weighs less.
  5. False: the right answer is The spongeA sponge is full of holes, so it is much lighter than a stone of the same size.
  6. To compare two things fairly (accept any answer with the same meaning)A balance helps us compare the mass of two things fairly.

Task

Answers will vary. The task comes from the lesson: Use a balance, or your hands, to compare pairs of things: a pebble and a metal spoon, a wooden block and a metal key, a sponge and a stone. For each pair, guess which is heavier first, then test it. Draw a smiley face if your guess was right.

Look for work that uses the key words correctly and gives a reason for each point.

Howardites · teacher copy: keep it separate from the pupil worksheets