Across
1
Unit of force
4
Measure of matter in an object
5
Basic unit of life
9
Form of thermal energy
11
Preserved remains of ancient life
Down
2
Absolute temperature scale unit
3
Path of a planet around the sun
4
Natural satellite of Earth
6
Compound containing oxygen
7
Unit of power
8
Push or pull on an object
10
Blocking of light by a celestial body