Across
1
Substance with pH below 7
3
Tissue that contracts for movement
5
Measure of matter in an object
6
Glass that splits light into spectrum
9
Biological catalyst
10
Infectious microscopic agent
Down
2
Molten rock beneath Earth surface
4
Curved glass that refracts light
5
Natural satellite of Earth
6
Positive particle in nucleus
7
Preserved remains of ancient life
8
Substance with pH above 7