Across
- 3. An imaginary line that something spins around.
- 5. The layer or layers of gas held around a planet or moon by gravity
- 6. The lowest layer of the atmosphere, where the weather happens
- 8. To circle a planet or star
Down
- 1. A line of latitude around the middle of the earth at its widest point
- 2. Distance from the equator
- 4. The force of attraction exerted by a large object such as a planet, which holds things on the surface and in orbit
- 7. Something that orbits a planet