Across
1
Unit of heredity
4
Fourth state of matter
6
Substance with pH below 7
7
Curved glass that refracts light
9
Nerve cell in the brain
Down
1
Precious yellow metallic element
2
Tissue that contracts for movement
3
Amplified beam of light
4
Glass that splits light into spectrum
5
Naturally occurring inorganic solid
8
Magnetic metallic element