chapter 21 lesson 1-2 crossword puzzle

123456789
Across
  1. 4. what do you call when a planets take once to travel around the sun
  2. 6. when solar energy get trap
  3. 7. what do you call a distance from the earth
  4. 8. what do you call big planet far from the sun
  5. 9. when a object rotation once
Down
  1. 1. what is a big rock made of ice and other gas
  2. 2. what do you call when weather change or when solar energy get trap what help it.
  3. 3. a large rock or object
  4. 5. closer to the sun than other
  5. 7. what is a small rock that go around the planets