1.
the largest in our solar system
2.
the closet star to earth
3.
the only other planet that has ice/water
5.
the only planet with life on it
6.
the closet planet to the sun
7.
the farthest planet from the sun
8.
the first planet to be seen with a telescope
9.
the galaxy that we live in
10.
has the most rings in the solar system
11.
when water turns into gas goes to clouds
12.
the wave of thermal energy
13.
the closet galaxy to us
14.
the first planet that we have visited
15.
the second layer in the earth