The Sun-Earth-Moon Crossword

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Across
  1. 4. The closest point in the Moon's orbit to Earth
  2. 7. Long trails of ejecta
  3. 8. A layer of loose ground-up rock on the Moon's surface
  4. 13. Dark, relatively smooth plains of the Moon
  5. 14. The spinning of the Earth around its axis
  6. 15. The percentage of incoming sunlight that the surface of the Moon reflects
  7. 16. When the moon passes directly between the Sun and Earth and blocks the Sun from view
Down
  1. 1. Period when the sun is overhead at its furthest distance either North or South of the equator
  2. 2. The movement of the Earth around the Sun in a fixed path
  3. 3. Valleylike structures on the Moon that might be collapsed lava tubes
  4. 5. Material blasted out during impacts from objects from space that fall back onto the Moon's surface
  5. 6. The furthest point in the Moon's orbit to Earth
  6. 9. heavily cratered regions of the moon that are light in color and mountainous
  7. 10. Time of year during which Earth's axis is at a 90 degree angle to the Sun
  8. 11. These are formed when objects from space crash into the lunar surface
  9. 12. When the Moon passes behind Earth in relation to the Sun and through Earth's shadow