Across
1
Center of an atom or cell
3
Molten rock beneath Earth surface
5
Natural satellite of Earth
6
Ball of burning gas in space
Down
2
Biological catalyst
3
Measure of matter in an object
4
Substance with pH above 7
7
Unit of electric potential
Center of an atom or cell
Molten rock beneath Earth surface
Natural satellite of Earth
Ball of burning gas in space
Biological catalyst
Measure of matter in an object
Substance with pH above 7
Unit of electric potential