Across
1
Hottest planet in solar system
4
Our home planet
6
Biological catalyst
8
Unit of heredity
Down
2
Absolute temperature scale unit
3
Second lightest element
5
Ball of burning gas in space
7
Compound containing oxygen
Hottest planet in solar system
Our home planet
Biological catalyst
Unit of heredity
Absolute temperature scale unit
Second lightest element
Ball of burning gas in space
Compound containing oxygen