the earth,sun

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Across
  1. 2. Its one of the biggest countries
  2. 5. A name of a group of contries
  3. 8. come in a close and you will die
  4. 9. A scientefic guess of the outside of the sun
  5. 10. how many days in a week
  6. 12. Its lava under the earth
  7. 14. It explodes lava
Down
  1. 1. core A scientefic guess of whats inside the sun
  2. 3. we live on one and may visit other
  3. 4. one of the hemipshere's
  4. 6. one of the hemipshere's
  5. 7. when the sea overloads
  6. 11. You live on it
  7. 13. The earth spins on it
  8. 15. the earth orbits the sun