The tendency for entropy to increase is reflected in a wide range of physical transformations that are are seen going one way but almost never in reverse such as:
- Temperature equalization of bodies at different initial temperatures.
- Escape of gas from an enclosed pressurized container into a larger environment.
- Mixing coffee and milk
- Scrambling eggs.
These are all manifestations of the general tendency for entropy to increase. The Second Law is not contradicted by localized entropy decreases - such as the evolution of life - since these are more than offset by entropy increases in the larger system.