Across
1
Glass that splits light into spectrum
4
Biological catalyst
6
Amplified beam of light
8
Positive particle in nucleus
9
Molten rock beneath Earth surface
12
Absolute temperature scale unit
13
Element found in all living things
Down
2
Gas form of a liquid
3
Icy body with a tail near the sun
5
Unit of energy
7
Infectious microscopic agent
10
Tectonic landmass section
11
Unit of force