Across
1
Solid with repeating atomic pattern
5
Blocking of light by a celestial body
Down
1
Basic unit of life
2
Second lightest element
3
Particle of light
4
Gas form of a liquid
6
Substance with pH above 7
7
Mass per unit volume
Solid with repeating atomic pattern
Blocking of light by a celestial body
Basic unit of life
Second lightest element
Particle of light
Gas form of a liquid
Substance with pH above 7
Mass per unit volume