Chapter,Lesson 1-2 Crossword Puzzle

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Across
  1. 1. Made of gas,dust,and ice and moves around the Sun in an oval-shaped orbit.
  2. 4. Largest planet ,takes 12 Earth years to completer one orbit.
  3. 6. The average distance from Earth to the Sun.
  4. 7. Planets made of helium and hydrogen.
  5. 9. occurs when a plants atmosphere traps solar energy and causes the surface temperature to increase.
  6. 10. Millions of small,rocky objects.
Down
  1. 2. Gas Giants,largest planets,father from the Sun.
  2. 3. Mercury,Venus,Earth,and Mars,made of rock and metal,have solid outer layers.
  3. 5. of Rotation Time it takes an object to complete one rotation.
  4. 8. Closest to the Sun,Terrestrial Planets