Across
1
The Red Planet
3
Naturally occurring inorganic solid
4
Unit of force
5
Element found in all living things
6
Group of similar cells
13
Unit of heredity
Down
2
Chemical element in table salt
3
Tissue that contracts for movement
7
Unit of electric potential
8
Mass per unit volume
9
Particle of light
10
Amplified beam of light
11
Natural satellite of Earth
12
Solid with repeating atomic pattern
14
Tectonic landmass section