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Earth, Moon, and the Sun

Checkpoint: motions, the Moon and eclipses

Five questions on the ideas so far. You get feedback right away. Retry it any time you like.

Earth turns once about every 24 hours. What does this cause?

The Moon turns once in each trip round Earth. What do we see?

During a lunar eclipse, which body is in the middle?

The Moon is much smaller than the Sun. How can it hide the Sun?

Which is a safe way to watch a solar eclipse?

0 of 5 answered

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This track

  1. 0 Start here
  2. 1 Earth is doing two things at once
  3. 2 The Moon keeps one face turned to us
  4. 3 When three line up, one shades another
  5. 4 The Moon shades a patch of Earth
  6. 5 Earth shades the Moon
  7. 6 Why it is not every month
  8. 7 One is safe to watch, the other never is
  9. 8 Checkpoint: motions, the Moon and eclipses
  10. 9 Why the Sun seems to move
  11. 10 Day here, night there
  12. 11 The star that stays still
  13. 12 Checkpoint: the turning sky
  14. 13 The night sky changes through the year
  15. 14 The tilt makes the seasons
  16. 15 The longest and shortest days
  17. 16 Checkpoint: the year, the tilt and the seasons
  18. 17 The big picture
  19. 18 Track quiz

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