Vocab

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Across
  1. 4. everything in space as a whole
  2. 6. the path of an object around another object
  3. 7. a force that pulls objects towards the earth, other planets, and moons.
  4. 9. a planet's spin on its axis
  5. 11. a device used to make distant things look closer
  6. 12. a person who studies space
Down
  1. 1. an imaginary line going through the poles of earth
  2. 2. journey around the sun
  3. 3. theory that the sun is the center of the solar system
  4. 5. the study of space
  5. 8. hole in the surface of a planet or moon caused by a rock from space hitting the surface.
  6. 10. theory that earth was center of the universe