Across
1
Hottest planet in solar system
3
Positive particle in nucleus
6
Reddish electrical conductor
7
Ball of burning gas in space
Down
2
Form of thermal energy
3
Particle of light
4
Glass that splits light into spectrum
5
Nerve cell in the brain
Hottest planet in solar system
Positive particle in nucleus
Reddish electrical conductor
Ball of burning gas in space
Form of thermal energy
Particle of light
Glass that splits light into spectrum
Nerve cell in the brain