Charlotte B.

3. a round ring of icy objects around the sun extending just beyond the orbit of Neptune
5. Rocky debris collides with our atmosphere creating colorful streaks of light
7. The region around a star where an orbiting planet could host liquid water and could possibly support life
8. a rock that falls to Earth from space
12. a celestial body resembling a small planet
13. A rocky-type object formed in the early solar system from collisions with other objects in the solar system
15. A measure of how circular an orbit is
16. Planets that have a compact, rocky, surface like Earth's terra firma
17. The mean distance between the center of the Earth and the center of the Sun

1. Lumps of rock or iron that orbit the sun
2. A fundamental system in condensed matter sciences and the main constituent of gas giant planets
4. A torus-shaped region in the solar system centered on the earth and spanning the space between the orbit of the planets Jupiter and Mars
5. A small body of matter from outer space that enters the Earth's atmosphere
6. a small icy object that orbits the sun and has a long tail of gas
9. Orbital or rotational motion of an object in the direction opposite the rotation of its primary
10. A large planet mostly composed of helium and hydrogen
11. A common tectonic feature found on Mercury such as a steep cliff
14. A closed-plane curve that results from the intersection of a plane cutting through a cone