Across
1
Mass per unit volume
4
Biological catalyst
7
Compound containing oxygen
Down
2
Hottest planet in solar system
3
Form of thermal energy
5
Amplified beam of light
6
Chemical element in table salt
8
Reddish electrical conductor
Mass per unit volume
Biological catalyst
Compound containing oxygen
Hottest planet in solar system
Form of thermal energy
Amplified beam of light
Chemical element in table salt
Reddish electrical conductor