The Sun-Earth-Moon System

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Across
  1. 4. lighter part of a shadow where light is partially blocked
  2. 5. day when Earth's rotation axis is the most toward or away from the Sun
  3. 7. spinning motion
  4. 11. central, darker part of a shadow where light is totally blocked
  5. 13. day when Earth's axis is not leaning toward or away from the Sun
  6. 15. daily rise and fall of sea level
  7. 16. imaginary line that divides Earth into its northern and southern hemispheres
  8. 18. occurs when the Moon's shadow appears on Earth's surface
  9. 20. large, dark, flat areas on the Moon
  10. 21. occurs when more of the Moon's near side is lit each night
  11. 23. object that orbits a larger object other than a star
  12. 24. meteoroid that strikes Earth
Down
  1. 1. occurs when the Moon moves into Earth's shadow
  2. 2. streak of light created when a meteoroid enters Earth's atmosphere
  3. 3. motion of an object around another object
  4. 6. occurs when less of the Moon's near side is lit each night
  5. 8. Earth's average distance from the Sun, nearly 150 million km
  6. 9. orbits the Sun, is large enough to be nearly spherical in shape, and has no other large object in its orbital path
  7. 10. line on which an object rotates
  8. 12. solar system object that is smaller than an asteroid or a comet
  9. 14. orbits the Sun and is nearly spherical in shape, but shares its orbital path with other objects of similar size
  10. 17. compounds composed mostly of silicon and oxygen, with smaller amounts of other atoms
  11. 19. path an object follows as it moves around another object
  12. 22. lit part of the Moon or a planet that can be seen from Earth