Howardites

The answer sheet for the worksheet Meteorites and magnets. 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: Meteorites and magnets

  1. B: SteelSteel is mostly iron, so a magnet attracts it. Aluminium, copper and wood are not attracted.
  2. C: A strong one, because its metal grains are smallChondrites have only small grains of iron-nickel metal mixed through the rock, so a strong magnet is needed to feel the pull.
  3. C: Paper clip, iron nail, iron filingsPaper clips are steel, which is mostly iron, and nails and filings are iron. Plastic, gold, copper, foil and glass are not attracted.
  4. D: They have almost no metal in themA magnet pulls on the metal in a rock. Most Mars meteorites have almost none.
  5. False: the right answer is Waste left over from making ironSlag is the waste from making iron. It sticks to a magnet, so people often mistake it for a meteorite.
  6. True (A meteorite from the Moon)Most meteorites from the Moon, Mars and the asteroid Vesta have almost no metal, so a magnet hardly pulls on them.
  7. So you can check which of your ideas were wrong (accept any answer with the same meaning)Writing a prediction first lets you compare it with the result and see where your ideas need changing.
  8. 1/4 (accept any answer with the same meaning)3 out of 12 is 3/12. Both numbers divide by 3, giving 1/4.

Task

Answers will vary. The task comes from the lesson: Collect ten safe objects from the classroom, such as a paper clip, a coin, a pencil, a spoon, a plastic ruler and a piece of foil. Predict which ones a magnet will attract, then test them and record the results in a table with columns for the object, your prediction and the result. Which predictions were wrong?

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

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