Across
1
Form of thermal energy
3
Glass that splits light into spectrum
4
Gas form of a liquid
8
Element found in all living things
9
Amplified beam of light
10
Unit of force
Down
2
Substance with pH below 7
3
Particle of light
4
Unit of electric potential
5
Compound containing oxygen
6
Tissue that contracts for movement
7
Naturally occurring inorganic solid