Across
1
Particle of light
4
Element found in all living things
5
Tissue that contracts for movement
6
Hottest planet in solar system
9
Substance with pH above 7
Down
2
Preserved remains of ancient life
3
Push or pull on an object
5
Molten rock beneath Earth surface
7
Solid with repeating atomic pattern
8
Basic unit of life
10
Absolute temperature scale unit
11
Unit of heredity