Across
1
Blocking of light by a celestial body
6
Path of a planet around the sun
7
Gas form of a liquid
Down
2
Element found in all living things
3
Amplified beam of light
4
Unit of heredity
5
Compound containing oxygen
8
Smallest unit of an element
Blocking of light by a celestial body
Path of a planet around the sun
Gas form of a liquid
Element found in all living things
Amplified beam of light
Unit of heredity
Compound containing oxygen
Smallest unit of an element