Across
1
Disturbance that transfers energy
3
Basic unit of life
4
Reddish electrical conductor
6
Curved glass that refracts light
7
Form of thermal energy
10
Natural satellite of Earth
11
The Red Planet
Down
2
Biological catalyst
3
Solid with repeating atomic pattern
5
Unit of energy
8
Preserved remains of ancient life
9
Substance with pH above 7