Across
1
Solid with repeating atomic pattern
2
Tectonic landmass section
5
Unit of heredity
7
Hottest planet in solar system
Down
1
Basic unit of life
2
Fourth state of matter
3
Substance with pH below 7
4
Amplified beam of light
6
Form of thermal energy
8
Disturbance that transfers energy
9
Blocking of light by a celestial body
10
Naturally occurring inorganic solid