Across
1
Infectious microscopic agent
3
Molten rock beneath Earth surface
4
Unit of force
6
Second lightest element
7
Preserved remains of ancient life
11
Naturally occurring inorganic solid
Down
2
The Red Planet
3
Tissue that contracts for movement
5
Absolute temperature scale unit
6
Form of thermal energy
8
Path of a planet around the sun
9
Chemical element in table salt
10
Unit of energy
12
Substance with pH above 7