Across
1
Fourth state of matter
4
Infectious microscopic agent
5
Biological catalyst
7
Second lightest element
9
Blocking of light by a celestial body
Down
2
Basic unit of life
3
Center of an atom or cell
6
Amplified beam of light
8
Unit of heredity
Fourth state of matter
Infectious microscopic agent
Biological catalyst
Second lightest element
Blocking of light by a celestial body
Basic unit of life
Center of an atom or cell
Amplified beam of light
Unit of heredity