Across
1
Solid with repeating atomic pattern
4
Biological catalyst
7
Disturbance that transfers energy
8
Glass that splits light into spectrum
10
Fourth state of matter
Down
1
Element found in all living things
2
Gas form of a liquid
3
Form of thermal energy
5
Second lightest element
6
Curved glass that refracts light
9
Blocking of light by a celestial body