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