Across
1
Solid with repeating atomic pattern
5
Mass per unit volume
6
Group of similar cells
7
Unit of energy
11
Measure of matter in an object
Down
2
Precious yellow metallic element
3
Unit of force
4
Biological catalyst
8
Chemical element in table salt
9
Hottest planet in solar system
10
Particle of light
12
Reddish electrical conductor