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Why does the Moon seem to change shape?

Explore how sunlight creates the Moon's phases.

ScienceClass 63 min video
Moon phase viewed from Earth beside the Sun and Moon orbit diagram2:44

What you'll learn

  1. 1Why the Moon is always round
  2. 2How sunlight lights up the Moon
  3. 3Why we see different Moon phases

What happens next

Watch short videoSee how sunlight and the Moon’s orbit create its phases.Try interactive experimentInteractive activity coming soon.Quick check quizTest what you've learned.
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