Across
1
Measure of matter in an object
3
Reddish electrical conductor
4
Path of a planet around the sun
8
Center of an atom or cell
9
Glass that splits light into spectrum
Down
2
Chemical element in table salt
5
Unit of energy
6
Smallest unit of an element
7
Magnetic metallic element
9
Tectonic landmass section
10
Unit of electric potential