â Companies like K Mart and Wal Mart offer an option agreement for warranties on their products, within a two year span of time after purchasing.
Erosion. 1  Rainfall-Rainfall can cause erosion both when the rain hits the surface of the Earth, called splash erosion, and when raindrops accumulate and flow like small streams. 2  Rivers-Rivers can create a significant amount of erosion over time. 3  They break up particles along the river bottom and carry them downstream.
Erosion can be caused by natural elements such as wind and glacial ice. But anyone who has ever seen a picture of the Grand Canyon knows that nothing beats the slow steady movement of water when it comes to changing the Earth. The key to erosion is something called fluid flow.. Water, air, and even ice are fluids because they tend to flow from one place to another due to the force of gravity. Of the three, liquid water is the most common agent of erosion because there's so much of it on the surface of the Earth. To see what kind of effects water has on a model landscape, try my Science Lab. Top of Page. Dirtmeister: Erosion | Teacher's Guide | Try Another Offline Science Lab | Meet the Dirtmeister.