Across
1
Second lightest element
4
Gas form of a liquid
5
Substance with pH below 7
6
Push or pull on an object
7
Unit of power
Down
2
Natural satellite of Earth
3
Our home planet
8
Measure of matter in an object
9
Ball of burning gas in space
Second lightest element
Gas form of a liquid
Substance with pH below 7
Push or pull on an object
Unit of power
Natural satellite of Earth
Our home planet
Measure of matter in an object
Ball of burning gas in space