Across
1
Unit of power
3
Magnetic metallic element
4
Positive particle in nucleus
6
Our home planet
7
Form of thermal energy
8
Second lightest element
11
Substance with pH above 7
Down
2
Gas form of a liquid
4
Tectonic landmass section
5
Group of similar cells
9
Absolute temperature scale unit
10
Disturbance that transfers energy