Across
1
Disturbance that transfers energy
3
Natural satellite of Earth
5
Our home planet
6
Tectonic landmass section
7
Reddish electrical conductor
10
Center of an atom or cell
Down
2
Molten rock beneath Earth surface
4
Group of similar cells
5
Biological catalyst
8
Positive particle in nucleus
9
Path of a planet around the sun
11
Hottest planet in solar system