Across
1
Reddish electrical conductor
5
Unit of force
6
Curved glass that refracts light
10
Basic unit of life
11
Gas form of a liquid
Down
2
Preserved remains of ancient life
3
Glass that splits light into spectrum
4
Disturbance that transfers energy
6
Amplified beam of light
7
Biological catalyst
8
Unit of heredity
9
Form of thermal energy