Runoff

Contributed by Mr. Scanga

Doesn’t soak into the ground or evaporate; runs over surface of earth.

• Amount of rain• Length of time rain

falls• Slope of land• Vegetation

Factors affecting amount of runoff

• Steeper slope, more runoff• More gentle slope,

less runoff• Has to do with

speed of the water

Less vegetation, more runoff

• What I chose to study:– How water flows over different slopes– Observe the difference– Observe runoff

Steeper Slope Less Steep Slope

Less runoff, less erosion

Sources

The Changing of the Surface of the Earth. 2002. Glenco Science. New York, New York.http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/hyd/run.rxml