Vocab

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Across
  1. 2. system The sun, the planets, that orbit the sun, and other objects that orbit the sun.
  2. 5. an object orbital motion around another object.
  3. 6. a huge object in space that gives off heat and light.
  4. 8. a period of time that is 24 hours long and includes daytime and night time.
  5. 9. The pull between earth and other objects which acts without being touched.
  6. 10. The spin or circular movement of an object on an axis.
  7. 11. The only star in our solar system.
Down
  1. 1. a scientist who studies stars, planets, and other objects in the universe.
  2. 3. an arrangement of stars that form a recognizable pattern or outline.
  3. 4. The length of time it takes earth to orbit the sun one time.
  4. 7. Something we observe similar over and over again.