Chapter 21 Lesson 1-2 Crossword Puzzle

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Across
  1. 4. Which is the third planet from the sun
  2. 7. what is made out of gas,dust,and ice
  3. 8. what is the second planet from the sun and rotates slowly
  4. 10. what are the planets closest to the sun and made out of rock,metal and have a solid layer
Down
  1. 1. what happens when a planets atmosphere traps solar energy
  2. 2. What is the average distance from earth to the sun
  3. 3. what are smaller than earth and it's made out of rocks and ice?
  4. 5. what are millions of small rocky objects
  5. 6. What is the smallest and closest planet to the sun
  6. 9. which one is the fourth planet from the sun and it's half of the size of earth