Across
- 2. Only planet that is known to support life.
- 4. Closet planet to the Sun.
- 7. Has a large ring.
- 9. A gaseous layer around a planet.
Down
- 1. Called Earth's sister.
- 3. Moving repeatedly around.
- 4. Desert Like, fourth planet from the Sun.
- 5. Planets Have shorter orbits, also called terrestrial planets.
- 6. Planets Have longer orbits, known as gas and ice giants.
- 8. Orbits planets.