Across
1
Mass per unit volume
4
Unit of heredity
6
Unit of force
8
Absolute temperature scale unit
10
Solid with repeating atomic pattern
12
Infectious microscopic agent
13
Tectonic landmass section
Down
2
Gas essential for breathing
3
Blocking of light by a celestial body
5
Reddish electrical conductor
7
Biological catalyst
9
Amplified beam of light
11
Natural satellite of Earth