Across
1
Infectious microscopic agent
4
Tectonic landmass section
5
Nerve cell in the brain
7
Blocking of light by a celestial body
8
Solid with repeating atomic pattern
10
Molten rock beneath Earth surface
12
Glass that splits light into spectrum
Down
2
Curved glass that refracts light
3
Preserved remains of ancient life
6
Disturbance that transfers energy
7
Our home planet
9
Naturally occurring inorganic solid
11
Gas essential for breathing