Chapter 28 Vocabulary Earth And Science

6. The form of hydrogen with both liquid and metallic properties that exists as a layer in the Jovian atmosphere.
7. Rocky-surfaced, small, and dense inner planets closest to the Sun.
9. The low, warm, dark-colored cloud that sinks and flows rapidly in the Jovian atmosphere.
10. Space objects built of solid particles that can form planets through collisions and mergers.
12. It occurs when Earth intersects a cometary orbit and comet particles burn up as they enter Earth's upper atmosphere.
15. A piece of interplanetary material that falls toward Earth and enters its atmosphere.
16. Large, gaseous planet's that are very cold at its surface; has ring systems, many moons, and lacks solid surfaces.
17. The average distance between the Sun and Earth.

1. A streak of light produced when a meteoroid falls toward Earth and burns up in Earth's atmosphere.
2. An object that,is not a satellite,and is spherical in shape, but due to its own gravity, orbits the Sun, and has not cleared the area of its orbit of smaller debris.
3. An oval that is centered on two points or the shape of planets' orbits.
4. A planet's backward movement in the sky.
5. The small solar system bodies that are mostly rock and ice, and lies outside the orbit of Neptune,
8. Cliff's on Mercury.
11. The high, cool, light-colored cloud that rises and flows rapidly in the Jovian atmosphere.
13. The ratio of the distance between the foci to the length of the major axis.
14. A small frag- ment of an orbiting body that has fallen to Earth, generating heat.