Across
1
Glass that splits light into spectrum
4
Curved glass that refracts light
6
Icy body with a tail near the sun
7
Mass per unit volume
Down
2
Push or pull on an object
3
Hottest planet in solar system
5
Chemical element in table salt
8
Ball of burning gas in space
9
Tectonic landmass section
10
Blocking of light by a celestial body