Across
1
Reddish electrical conductor
3
Preserved remains of ancient life
7
Solid with repeating atomic pattern
8
Naturally occurring inorganic solid
9
Blocking of light by a celestial body
Down
2
Unit of energy
3
Push or pull on an object
4
Measure of matter in an object
5
Group of similar cells
6
Positive particle in nucleus
10
Amplified beam of light