Across
1
Nerve cell in the brain
4
Unit of electric potential
5
Positive particle in nucleus
8
Disturbance that transfers energy
9
Center of an atom or cell
Down
2
Natural satellite of Earth
3
Unit of heredity
4
Gas form of a liquid
6
Reddish electrical conductor
7
Tectonic landmass section
10
Precious yellow metallic element
11
Our home planet