Across
1
Second lightest element
4
Unit of heredity
6
Measure of matter in an object
7
Mass per unit volume
Down
2
Precious yellow metallic element
3
Center of an atom or cell
5
Absolute temperature scale unit
8
Substance with pH below 7
Second lightest element
Unit of heredity
Measure of matter in an object
Mass per unit volume
Precious yellow metallic element
Center of an atom or cell
Absolute temperature scale unit
Substance with pH below 7