Across
1
Naturally occurring inorganic solid
5
Chemical element in table salt
6
Preserved remains of ancient life
10
Precious yellow metallic element
Down
2
Glass that splits light into spectrum
3
Unit of energy
4
Blocking of light by a celestial body
7
Force that attracts objects together
8
Amplified beam of light
9
Center of an atom or cell
11
Fourth state of matter