Across
1
Smallest unit of an element
4
Tissue that contracts for movement
5
Magnetic metallic element
7
Gas form of a liquid
8
Unit of electric potential
9
Preserved remains of ancient life
11
Glass that splits light into spectrum
Down
2
Tectonic landmass section
3
Path of a planet around the sun
4
Measure of matter in an object
6
Curved glass that refracts light
8
Infectious microscopic agent
10
Unit of force
12
Molten rock beneath Earth surface