Across
1
Curved glass that refracts light
4
Solid with repeating atomic pattern
5
Gas form of a liquid
9
Ball of burning gas in space
10
Tissue that contracts for movement
11
Push or pull on an object
12
Tectonic landmass section
Down
2
The Red Planet
3
Blocking of light by a celestial body
4
Element found in all living things
6
Preserved remains of ancient life
7
Amplified beam of light
8
Molten rock beneath Earth surface