Across
1
Preserved remains of ancient life
3
Form of thermal energy
7
Tissue that contracts for movement
8
Mass per unit volume
Down
2
Fourth state of matter
4
Biological catalyst
5
Amplified beam of light
6
Group of similar cells
Preserved remains of ancient life
Form of thermal energy
Tissue that contracts for movement
Mass per unit volume
Fourth state of matter
Biological catalyst
Amplified beam of light
Group of similar cells