Across
- 5. one of the four inner planets with solid, rocky surfaces
- 6. the force that attracts mass to other mass
- 8. a large, gaseous planet that does not have a solid rocky surface
- 9. a small, icy body that has an eccentric orbit around the Sun
- 10. a stream of charged particles released from the Sun that can strip away planetary atmospheres if not protected by a magnetic field
Down
- 1. the magnetic field surrounding a planet that protects it from solar radiation
- 2. metallic or silicate-rich object that orbits the Sun in between Mars and Jupiter
- 3. unit of measurement used to find distances between the Sun and a planet in its orbit
- 4. the process where a planet separates into layers (core, mantle, crust) based on density, usually early in its formation
- 7. the process by which dust and gas particles clump together under gravity to form larger bodies, like planets