Across
1
Chemical element in table salt
2
Tectonic landmass section
3
Disturbance that transfers energy
5
Mass per unit volume
9
Measure of matter in an object
11
Absolute temperature scale unit
Down
2
Fourth state of matter
3
Unit of power
4
Natural satellite of Earth
6
Substance with pH below 7
7
Particle of light
8
Group of similar cells
10
Gas form of a liquid