Chapter 5 Checkup

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Across
  1. 6. first spacecraft designed to be reused
  2. 8. system is tipped on its side
  3. 10. windiest planet
  4. 11. Russian space station launched in 1986
  5. 12. the red planet
  6. 16. first man to step on the moon
  7. 19. discovered light is a combination of colors
  8. 21. largest moon in the solar system
Down
  1. 1. helped American take the lead in space exploration
  2. 2. first American satellite
  3. 3. first space station launched by the United States
  4. 4. first American to orbit the earth
  5. 5. discovered the planet Uranus
  6. 6. first artificial object to orbit the earth
  7. 7. discovered electromagnetic waves
  8. 9. largest planet in our solar system
  9. 13. first manned mission to land on the moon
  10. 14. largest moon of Saturn
  11. 15. known for its rings
  12. 17. closet planet to the sun
  13. 18. "Father of Rocketry"
  14. 20. sometimes called the morning star