S2.9.6 For the adult

Phases of the Moon

Why does the Moon change shape?

What this chapter teaches

The Moon is always a ball, and the Sun lights half of it. We see more or less of that half as the Moon goes round, which makes the phases; they are not the Earth's shadow.

Three questions to ask

There is no one right wording. Listen for the idea.

  1. Why does the Moon change shape through the month?
  2. How would you use a ball and a torch to make a crescent?
  3. What do you think the Moon looks like to a friend on the other side of the world?

After the chapter, the learner can

  • Model the phases of the Moon with a ball and a lamp
  • Draw the Moon each night for two weeks and name the phases
  • Explain why the Moon looks upside down in the other hemisphere

What they copy into their notebook

The Moon is always a ball. The Sun lights half of it. As it goes round, we see more or less of that half. These are its phases. North and south see it upside down.

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