Across
1
Molten rock beneath Earth surface
5
Unit of power
6
Center of an atom or cell
7
Compound containing oxygen
9
Basic unit of life
Down
2
Fourth state of matter
3
Smallest unit of an element
4
Precious yellow metallic element
8
Unit of electric potential
10
Reddish electrical conductor
11
Our home planet
12
Tectonic landmass section
13
Unit of heredity