Across
1
Measure of matter in an object
3
Unit of energy
4
Absolute temperature scale unit
6
Reddish electrical conductor
9
Precious yellow metallic element
10
Substance with pH above 7
Down
1
Tissue that contracts for movement
2
Center of an atom or cell
5
Tectonic landmass section
7
Nerve cell in the brain
8
Path of a planet around the sun