Across
1
Unit of heredity
4
Element found in all living things
7
Unit of energy
Down
2
Compound containing oxygen
3
Amplified beam of light
5
Form of thermal energy
6
Gas essential for breathing
8
Hottest planet in solar system
Unit of heredity
Element found in all living things
Unit of energy
Compound containing oxygen
Amplified beam of light
Form of thermal energy
Gas essential for breathing
Hottest planet in solar system