Across
1
Substance with pH above 7
3
Reddish electrical conductor
5
Our home planet
8
Tectonic landmass section
9
Unit of power
11
Unit of electric potential
12
Measure of matter in an object
Down
2
Unit of force
4
Unit of heredity
6
Molten rock beneath Earth surface
7
Positive particle in nucleus
10
Blocking of light by a celestial body