mechanics

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Across
  1. 3. A _______________ consists of everything observable
  2. 7. velocity/time
  3. 11. Anything orbiting anything is a _____________.
  4. 12. If it has 100,000,000,000 stars it is a
  5. 14. The earth gets most of its energy from the
  6. 15. AMA Accounts for
  7. 16. our sun is a
  8. 17. By volume the universe is mostly
  9. 19. My name is
  10. 20. If it is comfortable to live on it's a
Down
  1. 1. If it goes around a planet it is a ___________
  2. 2. distance and time
  3. 4. Which are (is) a few light years away from us
  4. 5. My teacher calls himself
  5. 6. The universe has about ____________________ galaxies in it
  6. 8. The solar system is mostly full of ___________.
  7. 9. force/area
  8. 10. Which is a few light hours across
  9. 13. Something orbiting a sun that is too small to be a planet and too solid to be a comet is
  10. 18. work/time