Science

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Across
  1. 3. the planet closest to the sun
  2. 5. the rock orbiting our planet
  3. 6. the plant 5th from the sun
  4. 8. the strength of gravitational pull
  5. 13. the force that goes against objects that are falling
  6. 15. the planet 6th from the sun
  7. 16. a exploded star
  8. 17. a tool used to measure mass
  9. 18. the force that holds us to earth
  10. 19. the scientist who discovered gravity
Down
  1. 1. the former 9th planet that became a dwarf planet
  2. 2. the planet 7th from the sun
  3. 4. a tool used to measure weight
  4. 5. the planet fourth from the sun
  5. 7. the planet we inhabit
  6. 9. the measure of matter
  7. 10. the planet 2nd from the sun
  8. 11. the main star of our galaxy
  9. 12. a American space company
  10. 14. our galaxy