Across
1
Gas essential for breathing
4
Basic unit of life
5
Compound containing oxygen
8
Gas form of a liquid
Down
2
Naturally occurring inorganic solid
3
Precious yellow metallic element
6
Unit of heredity
7
Amplified beam of light
Gas essential for breathing
Basic unit of life
Compound containing oxygen
Gas form of a liquid
Naturally occurring inorganic solid
Precious yellow metallic element
Unit of heredity
Amplified beam of light