Across
1
Tectonic landmass section
5
Blocking of light by a celestial body
8
Tissue that contracts for movement
9
Gas essential for breathing
11
Push or pull on an object
Down
2
Reddish electrical conductor
3
Unit of energy
4
Substance with pH above 7
6
Unit of force
7
Basic unit of life
10
Precious yellow metallic element