This is a sheet we use to keep and record data which is a science standard to keep records and not alter them. They can observe, and explain the three tyes of erosion: wind, water, glacial.
We placed sand into disposable baking pans (usually $1.00 or so). I poured the sand into a mountain shape and each day we created a different type of erosion. We used ice cubes on top for glacial, a spray bottle for a rain effect and then straws to create wind erosion. The students observe before and after then write about what they saw.