Final Review 4

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Across
  1. 4. The category name for the inner four planets that have rocky surfaces
  2. 5. More of this means that gravity is stronger
  3. 6. Type of star that can end its life cycle as a neutron star or a black hole
  4. 8. A former planet that's furthest from the sun
  5. 9. The process that produces energy in the sun's core
  6. 11. The spinning of Earth on its axis
  7. 13. Less of this means that gravity is stronger
Down
  1. 1. The orbiting of Earth around the sun
  2. 2. The first phase of the moon cycle
  3. 3. The category name for the outer four planets that are made of gas
  4. 7. Eclipse that happens during the day
  5. 10. Eclipse that happens at night
  6. 12. Type of star that ends its life cycle as a white dwarf