Weathering & Erosion

First educate, and then quiz viewers on the ins and outs of weathering and erosion. At a level appropriate for upper elementary or middle school earth scientists, these slides display animated graphics and photos. The first 22 slides break down the difference between mechanical and chemical weathering and then relate it to the process of erosion. The remaining slides present 10 critical-thinking questions to reinforce the concepts presented. You may want to update a few of the photos as they are of poor quality.