Across
1
Naturally occurring inorganic solid
4
Unit of power
5
Ball of burning gas in space
7
Second lightest element
8
Unit of force
Down
2
Substance with pH below 7
3
Glass that splits light into spectrum
6
Basic unit of life
9
Particle of light
Naturally occurring inorganic solid
Unit of power
Ball of burning gas in space
Second lightest element
Unit of force
Substance with pH below 7
Glass that splits light into spectrum
Basic unit of life
Particle of light