Science exam

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Across
  1. 3. The bright thing in the sky every night
  2. 4. the area on the earth or moon experiencing the total phase of an eclipse.
  3. 6. a tendency to do nothing or to remain unchanged.
  4. 10. A big rock that shoots across the sky sometimes
  5. 12. A object that gives us light
  6. 13. When the moon is shown all the way to us
  7. 15. Planets that aren't considered real planets
  8. 17. What we study outside our world
  9. 21. an eclipse in which the moon appears darkened as it passes into the earth's shadow.
  10. 23. man made object that revolves around the earth
  11. 25. What keeps us on the ground
  12. 27. To circle around an axis
  13. 28. the penumbra experiences a partial eclipse.
  14. 29. having or representing the earth as the center, as in former astronomical systems.
  15. 30. An educated guess
Down
  1. 1. Where all planets are located together
  2. 2. To rotate around and axis
  3. 5. having or representing the sun as the center, as in the accepted astronomical model of the solar system.
  4. 7. A thing that happens normally and often
  5. 8. Move in a circle around a axis
  6. 9. A person that goes in space
  7. 11. the curved sickle shape of the waxing or waning moon.
  8. 12. Where we regularly study space in space
  9. 14. The path of the planets as they orbit
  10. 16. An object that takes us to space
  11. 18. National Aeronautics and Space Administration.
  12. 19. How dense something is
  13. 20. A bright light that shoots in space
  14. 22. having the observable illuminated part greater than a semicircle and less than a circle.
  15. 24. an eclipse in which the sun is obscured by the moon.
  16. 26. What we look through to see far away things