Across
1
Biological catalyst
4
The Red Planet
5
Smallest unit of an element
8
Unit of electric potential
Down
2
Icy body with a tail near the sun
3
Glass that splits light into spectrum
6
Molten rock beneath Earth surface
7
Our home planet
Biological catalyst
The Red Planet
Smallest unit of an element
Unit of electric potential
Icy body with a tail near the sun
Glass that splits light into spectrum
Molten rock beneath Earth surface
Our home planet