Across
- 3. Hottest planet
- 5. Bowl-shaped cavity on the surface of the planet
- 7. These planets are also called terrestrial planets
- 8. The elliptical path of the planets
- 9. These planets are mostly made up of gas
- 10. Axis tilted on its side
- 13. The envelope of gases surrounding the Earth or another planet
- 15. A natural force of attraction exerted by one object on another object
- 16. Planet with the “Great Dark Spot”
- 17. “The Red Planet”
Down
- 1. Another word for a moon orbiting a planet
- 2. Closest planet to the Sun
- 4. Gas planet with visible rings
- 6. The period of time it takes a planet to go around the Sun
- 11. The spinning of a planet on its axis
- 12. The largest planet
- 14. Two-thirds of its surface is covered by water