Across
1
Reddish electrical conductor
4
Disturbance that transfers energy
6
Compound containing oxygen
8
Nerve cell in the brain
9
Naturally occurring inorganic solid
10
Our home planet
Down
2
Unit of heredity
3
Tissue that contracts for movement
5
Tectonic landmass section
7
Magnetic metallic element
11
Solid with repeating atomic pattern
12
Basic unit of life
13
Natural satellite of Earth