Across
1
Element found in all living things
4
Reddish electrical conductor
5
Magnetic metallic element
6
Ball of burning gas in space
10
Molten rock beneath Earth surface
11
Smallest unit of an element
12
Unit of force
Down
2
Curved glass that refracts light
3
Naturally occurring inorganic solid
7
Unit of power
8
Tissue that contracts for movement
9
Absolute temperature scale unit