Across
1
Tectonic landmass section
4
Glass that splits light into spectrum
5
Precious yellow metallic element
6
Substance with pH above 7
8
Unit of heredity
Down
2
Curved glass that refracts light
3
Unit of energy
4
Fourth state of matter
7
Tissue that contracts for movement
9
Group of similar cells
10
Substance with pH below 7