Mars and earth crossword

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Across
  1. 3. the outermost layer of earth
  2. 6. solid bulk of earths interior
  3. 9. dense center of the earth
  4. 11. A canyon system system on mars equator
  5. 13. ice poles beneath the surface of mars
  6. 14. a space exploration vehicle
  7. 15. the larger moon for mars
Down
  1. 1. the third layer of earth
  2. 2. a star which the earth orbits
  3. 4. an celestial body orbiting earth or other planets
  4. 5. a shield volcano mountain on mars
  5. 7. a crater on a planet or moon from an meteorite
  6. 8. fourth planet from the sun
  7. 10. when an orbit from an planet lines up opposite of a other planet
  8. 12. the smaller moon for mars