Space

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Across
  1. 4. An apparent force.
  2. 8. The place surrounding a planet.
  3. 9. A small rock orbiting the sun.
  4. 10. A person who goes to space.
  5. 11. An opening in the moon.
  6. 12. The circular motion planets make.
Down
  1. 1. A property of matter that stays the same.
  2. 2. A force that attracts things to the center of the earth.
  3. 3. The form of a fingernail or a sort of moon.
  4. 5. All existing matter and space.
  5. 6. A pattern of stars in the sky.
  6. 7. Garbage floating in space.