Percolation/Surface run-off
* school science def1. Percolation
Water traveling on top of the surface to places where water is collected(oceans, lakes, ponds, streams, etc.)
2. Percolation:
Water filtering through the ground to underground aquifers
3. Elsewhere
3.1. References
3.2. In my garden
Notes that link to this note (AKA backlinks).