Across
- 2. planet that is not large enough to clear its own path for orbit
- 4. gas and ice giant planets
- 5. rocky objects leftover in space from the formation of the solar system
- 8. lowest level of the atmosphere
- 10. when plants release water vapor into the air
Down
- 1. when water vapor rises from surface water into the atmosphere
- 3. natural satellite orbiting earth
- 6. rocky, earth-like planets
- 7. highest level clouds
- 9. what holds the moon in orbit around earth