Across
1
Particle of light
3
Basic unit of life
5
Chemical element in table salt
7
Ball of burning gas in space
Down
1
Glass that splits light into spectrum
2
Center of an atom or cell
4
Unit of electric potential
6
Unit of energy
Particle of light
Basic unit of life
Chemical element in table salt
Ball of burning gas in space
Glass that splits light into spectrum
Center of an atom or cell
Unit of electric potential
Unit of energy