Howardites

The answer sheet for the worksheet Our Solar System and where space rocks live. 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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KS2 · Ages 7 to 11 (Years 3 to 6)Answer sheet for teachers

Answers: Our Solar System and where space rocks live

  1. B: Dividing by 1,000 is much easierRounding gives a quick estimate. You then check by multiplying.
  2. C: A little more than 12.7Dividing by a smaller number gives a bigger answer, so it is a little more than 12.7.
  3. C: One yearOne trip around the Sun takes Earth one year.
  4. A: It warms up and gas and dust stream off itNear the Sun a comet warms up, and gas and dust stream off to make a glowing tail.
  5. True (Ceres)Mercury, Venus and Mars are planets. Ceres is the largest asteroid.
  6. True (Neptune)The order ends Jupiter, Saturn, Uranus, Neptune, so Neptune is furthest out.
  7. Mercury, Venus, Earth, Mars (accept any answer with the same meaning)Going out from the Sun: Mercury, Venus, Earth, then Mars.
  8. Trails of dust (accept any answer with the same meaning)Comets shed dust, leaving trails along their orbits.

Task

Answers will vary. The task comes from the lesson: Make a planet line. Use a long strip of paper or the school field. Mark the Sun at one end, then use this guide (1 step is about 1 metre): Mercury 1, Venus 2, Earth 3, Mars 4, asteroid belt 6 to 8, Jupiter 13, Saturn 24, Uranus 49, Neptune 77. Stand at the asteroid belt and look at how far you are from Earth.

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