1.
The star at the center of our solar system
2.
The bright streak of light produced when a meteoroid enters Earth's atmosphere
3.
The galaxy containing our solar system
4.
The group containing Mercury Venus Earth and Mars
5.
The largest planet in our solar system
6.
The type of giant that Uranus and Neptune are
7.
The planet famous for its bright and extensive rings
8.
Rocky and metallic objects found in the Asteroid Belt
9.
A small piece of rock or metal travelling through space
10.
A piece of a meteoroid that reaches Earth's surface
11.
An object made mostly of ice frozen gases dust and rock
12.
The glowing cloud that can form around a comet
13.
The region beyond Neptune containing many small icy objects
14.
The dwarf planet located beyond Neptune
15.
The unusually large moon of Pluto
16.
The region between Mars and Jupiter containing millions of rocky and metallic objects
17.
The distant region thought to contain billions of icy objects
18.
The type of giant that Jupiter and Saturn are
19.
The force that makes Pluto nearly round
20.
The only planet known to have large amounts of liquid water on its surface and life
