SCIENCE CH. 11

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Across
  1. 2. ____________ von Braun helped develop space travel
  2. 8. belt that Pluto is in
  3. 9. planet called the ringed planet
  4. 11. the outermost part of the sun
  5. 13. planet sometimes called Earth's twin
  6. 14. research spacecraft sent beyond earth
  7. 15. planet most like Earth
  8. 17. the outer planets are called the gas _________.
  9. 18. belt in between Mars and Jupiter
  10. 19. the time it takes for a planet to revolve around the sun
Down
  1. 1. planet closest to the sun
  2. 3. ____________ Goddard launged the first rocket
  3. 4. the __________ of the moon are caused by the sun
  4. 5. the sun's atmosphere
  5. 6. the inner planets are also called this
  6. 7. spots, dark spots of the sun
  7. 10. the surface of the sun
  8. 12. planet with the Great Red Spot
  9. 16. shuttle, reusable space vehicle for equipment and people
  10. 20. determines the seasons on the earth