Across
1
Gas form of a liquid
4
Blocking of light by a celestial body
5
Disturbance that transfers energy
10
Hottest planet in solar system
11
Our home planet
Down
2
Tectonic landmass section
3
Element found in all living things
6
Preserved remains of ancient life
7
Tissue that contracts for movement
8
Biological catalyst
9
Positive particle in nucleus
12
Unit of power