Across
1
Smallest unit of an element
4
Unit of electric potential
7
Unit of power
8
Reddish electrical conductor
10
Amplified beam of light
11
Particle of light
14
Biological catalyst
Down
2
Glass that splits light into spectrum
3
Tectonic landmass section
5
Path of a planet around the sun
6
Absolute temperature scale unit
9
Mass per unit volume
12
Compound containing oxygen
13
Substance with pH above 7