Across
1
Element found in all living things
4
Disturbance that transfers energy
7
Infectious microscopic agent
8
Natural satellite of Earth
9
Tectonic landmass section
10
Molten rock beneath Earth surface
Down
2
Tissue that contracts for movement
3
Glass that splits light into spectrum
5
Smallest unit of an element
6
Our home planet
11
Second lightest element