Across
1
Substance with pH above 7
4
Ball of burning gas in space
5
Natural satellite of Earth
8
Unit of energy
Down
2
Push or pull on an object
3
Smallest unit of an element
6
Hottest planet in solar system
7
Center of an atom or cell
Substance with pH above 7
Ball of burning gas in space
Natural satellite of Earth
Unit of energy
Push or pull on an object
Smallest unit of an element
Hottest planet in solar system
Center of an atom or cell