Across
1
The Red Planet
3
Reddish electrical conductor
4
Particle of light
5
Group of similar cells
Down
2
Mass per unit volume
4
Glass that splits light into spectrum
6
Unit of electric potential
7
Natural satellite of Earth
The Red Planet
Reddish electrical conductor
Particle of light
Group of similar cells
Mass per unit volume
Glass that splits light into spectrum
Unit of electric potential
Natural satellite of Earth