Across
1
Gas form of a liquid
4
Basic unit of life
5
Particle of light
6
Group of similar cells
9
Unit of force
10
Compound containing oxygen
11
Absolute temperature scale unit
Down
2
Positive particle in nucleus
3
Disturbance that transfers energy
4
Element found in all living things
7
Unit of electric potential
8
Chemical element in table salt
12
Unit of energy
13
Reddish electrical conductor
14
Amplified beam of light