Across
- 4. There is no definite surface on _______, as occurs on the inner rocky planets.
- 6. The outer planets are __________, low density worlds.
- 7. The first stage of a star is _____ phase.
- 8. As a nebula shrinks under the influence of gravity it spins ______.
- 10. Earth i 8.2 ____ minutes away from the sun.
Down
- 1. ______ is the closest palnet to the sun.
- 2. Jupiter and Saturn are outer planets.
- 3. The ____ system consists of the un, system of planets, planets, asteroids, and comets.
- 5. Panets divided into two classes ____ planets and outer plaets.
- 9. The sun us th nearest star to _____.