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Earth, Moon, and the Sun

Checkpoint: the turning sky

Five ideas from the last three lessons. Answer, read the note, and try again.

In which direction does the Sun seem to move across the sky?

Two towns are far apart. One is in the east and one is in the west. Which sees sunrise first?

Which star seems to stay still all night in the north?

A long photograph shows stars as curved arcs. What are these called?

How far does the night sky seem to turn in one hour?

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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