Solar System Vocabulary

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Across
  1. 2. the star that is the source of light and heat for the planets in the solar system
  2. 6. craft capable of traveling in outer space
  3. 8. the second nearest planet to the sun
  4. 9. the natural satellite of the Earth
  5. 11. the degree of hotness or coldness of a body or environment
  6. 14. The sun is a very hot ball of hydrogen and ______ gases
  7. 15. a collection of star systems
Down
  1. 1. largest planet in solar system
  2. 3. a celestial body that revolves around the sun
  3. 4. a person trained to travel in a spacecraft
  4. 5. This planet named after Roman god of war and agriculture
  5. 7. the layer of gases surrounding any celestial body
  6. 10. a small celestial body composed of rock and metal
  7. 12. the galaxy containing the solar system
  8. 13. rocky planet