Across
1
Glass that splits light into spectrum
3
Precious yellow metallic element
4
Nerve cell in the brain
6
Naturally occurring inorganic solid
8
Solid with repeating atomic pattern
9
Blocking of light by a celestial body
Down
1
Tectonic landmass section
2
Amplified beam of light
5
Substance with pH below 7
7
Compound containing oxygen