Across
1
Glass that splits light into spectrum
3
Curved glass that refracts light
5
Gas essential for breathing
6
Ball of burning gas in space
7
Our home planet
Down
1
Particle of light
2
Second lightest element
4
Naturally occurring inorganic solid
Glass that splits light into spectrum
Curved glass that refracts light
Gas essential for breathing
Ball of burning gas in space
Our home planet
Particle of light
Second lightest element
Naturally occurring inorganic solid