Across
1
Disturbance that transfers energy
4
Amplified beam of light
5
Element found in all living things
8
Second lightest element
9
Unit of electric potential
10
Group of similar cells
Down
2
Substance with pH above 7
3
Unit of energy
6
Push or pull on an object
7
Absolute temperature scale unit
8
Form of thermal energy
11
Glass that splits light into spectrum