Across
1
Unit of electric potential
2
Nerve cell in the brain
3
Measure of matter in an object
5
Reddish electrical conductor
6
Compound containing oxygen
11
Unit of power
12
Center of an atom or cell
Down
1
Hottest planet in solar system
4
Unit of force
7
Basic unit of life
8
Unit of energy
9
Tectonic landmass section
10
Magnetic metallic element
13
Positive particle in nucleus