Unit 7 Review

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Across
  1. 3. the fourth planet from the Sun
  2. 6. Closest planet to the sun
  3. 7. the second planet from the sun
  4. 9. the eight planet from the Sun
  5. 10. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
  6. 12. the planet we live on; the third planet from the Sun in our solar system
Down
  1. 1. The sixth planet from the sun
  2. 2. a celestial body of ice, dist, and rock with an elongated and elliptical orbit
  3. 3. A large spiral galaxy that is home to Earth and the rest of our solar system, and about a trillion stars.
  4. 4. the closest star to Earth
  5. 5. the fifth planet from the Sun
  6. 8. The seventh planet from the sun
  7. 11. a big ball of hot gases in space that produces its own light and heat