Across
1
Unit of energy
3
Compound containing oxygen
4
Element found in all living things
6
Solid with repeating atomic pattern
Down
2
Positive particle in nucleus
3
Gas essential for breathing
5
Unit of power
7
Glass that splits light into spectrum
Unit of energy
Compound containing oxygen
Element found in all living things
Solid with repeating atomic pattern
Positive particle in nucleus
Gas essential for breathing
Unit of power
Glass that splits light into spectrum