Our Solar System

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Across
  1. 2. How thick the atmosphere/air/a planet is.
  2. 4. Move in a circular orbit around.
  3. 6. A coherent, typically large body of matter with no definite shape.
  4. 7. Seventh planet from the sun.
  5. 10. The action of rotating around a center.
  6. 11. A substance or matter in a state.
  7. 13. The force that attracts a body toward the center of the earth.
  8. 16. Orbits around planets.
  9. 17. A length or portion of time.
  10. 18. Orbits around the sun.
  11. 19. Fifth planet from the sun.
  12. 20. The center of our solar system.
Down
  1. 1. First planet from the sun.
  2. 3. Physical force exerted in the solar system.
  3. 5. A repeating path that something takes around another.
  4. 6. Fourth planet from the sun.
  5. 8. Separates the planet from space.
  6. 9. Ice traveling in space.
  7. 12. Our planet.
  8. 14. Eighth planet from the sun.
  9. 15. Appears during night time.
  10. 16. Has a ring around orbiting.
  11. 18. Dwarf planet.