Across
1
The Red Planet
3
Tectonic landmass section
5
Magnetic metallic element
7
Nerve cell in the brain
8
Disturbance that transfers energy
11
Gas form of a liquid
12
Our home planet
Down
2
Smallest unit of an element
3
Particle of light
4
Solid with repeating atomic pattern
6
Unit of electric potential
9
Gas essential for breathing
10
Curved glass that refracts light