Across
1
Natural satellite of Earth
4
Ball of burning gas in space
5
Amplified beam of light
7
Substance with pH above 7
Down
2
Second lightest element
3
Path of a planet around the sun
6
Gas form of a liquid
8
Absolute temperature scale unit
Natural satellite of Earth
Ball of burning gas in space
Amplified beam of light
Substance with pH above 7
Second lightest element
Path of a planet around the sun
Gas form of a liquid
Absolute temperature scale unit