Chapter 2 Crossword, 6th grade

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Across
  1. 6. objects made of rock and ice from around the sun, formed from gravity and electrostatic forces, pg 55
  2. 7. russian dog sent into space, pg 62
  3. 9. round, orbits the sun, cleared area of debris, pg 51
  4. 10. two words, average distance between middle of sun and middle of earth, pg 50
  5. 12. gaseous body at the center of our solar system, pg 51
  6. 15. natural satellite of planets, pg 54
  7. 17. two words, many types of this but visible light is most familiar version, pg 59
  8. 18. closest planet to the sun, pg 52
Down
  1. 1. liquid found on the surface of earth allowing for survival, pg 52
  2. 2. farthest planet from the sun, pg 53
  3. 3. pull that keeps objects in solar system orbiting, pg 49
  4. 4. time it takes a planet to rotate on it's axis, pg 51
  5. 5. formerly known as the ninth planet, now a dwarf planet, pg 54
  6. 8. name of space telescope launched in 2009, pg 64
  7. 11. instruments that collect and focus light, pg 60
  8. 13. time it takes a planet to orbit the sun, pg 51
  9. 14. two words, sun, planets, moons, variety of other objects, pg 49
  10. 16. all objects in space emit this, pg 59