Across
1
Solid with repeating atomic pattern
4
Unit of heredity
6
Hottest planet in solar system
8
Glass that splits light into spectrum
10
Unit of electric potential
Down
1
Basic unit of life
2
The Red Planet
3
Ball of burning gas in space
5
Force that attracts objects together
7
Form of thermal energy
8
Fourth state of matter
9
Element found in all living things
11
Natural satellite of Earth