Across
1
Biological catalyst
4
Fourth state of matter
6
Glass that splits light into spectrum
7
Measure of matter in an object
9
Molten rock beneath Earth surface
10
Unit of electric potential
Down
1
Blocking of light by a celestial body
2
Element found in all living things
3
Curved glass that refracts light
5
Gas form of a liquid
7
Naturally occurring inorganic solid
8
Magnetic metallic element
11
Unit of power