Earth science

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Across
  1. 3. a part of an atom with neutral charge
  2. 5. a celestial body that orbits a sun
  3. 6. rain, when gas emissions combine with water
  4. 8. zero, lowest temperature possible
  5. 9. tectonics, the movement of the earth's crust
  6. 11. fission, when two atoms fuse together
  7. 12. the patha celestial body follows
  8. 14. lets gas and liquid through it
Down
  1. 1. living object that can function on its own
  2. 2. a celestial body made of rock
  3. 4. rock, a rock formed by clay
  4. 7. hole, the result after a star collapses
  5. 8. erosion by friction
  6. 10. someone who studies planets and space
  7. 13. a cloud of dust in space