Across
1
Ball of burning gas in space
3
Magnetic metallic element
5
Form of thermal energy
6
Chemical element in table salt
10
Molten rock beneath Earth surface
11
Unit of energy
12
Reddish electrical conductor
Down
2
Naturally occurring inorganic solid
4
Solid with repeating atomic pattern
7
Unit of electric potential
8
Element found in all living things
9
Unit of heredity