Across
1
Preserved remains of ancient life
4
Disturbance that transfers energy
6
Tectonic landmass section
7
Mass per unit volume
8
Our home planet
9
Amplified beam of light
10
Absolute temperature scale unit
Down
2
Natural satellite of Earth
3
Blocking of light by a celestial body
5
Ball of burning gas in space
6
Fourth state of matter
11
The Red Planet
12
Compound containing oxygen
13
Unit of heredity
14
Hottest planet in solar system