Across
1
Naturally occurring inorganic solid
3
Glass that splits light into spectrum
4
Molten rock beneath Earth surface
6
Fourth state of matter
7
Center of an atom or cell
8
Basic unit of life
9
Ball of burning gas in space
Down
1
The Red Planet
2
Amplified beam of light
3
Tectonic landmass section
5
Element found in all living things
10
Tissue that contracts for movement