Across
1
Substance with pH below 7
3
Tectonic landmass section
4
Biological catalyst
5
Solid with repeating atomic pattern
6
Tissue that contracts for movement
9
Disturbance that transfers energy
10
Unit of energy
12
Infectious microscopic agent
13
Precious yellow metallic element
Down
2
Naturally occurring inorganic solid
3
Glass that splits light into spectrum
5
Element found in all living things
7
Compound containing oxygen
8
Substance with pH above 7
11
Amplified beam of light