Earth Changes PowerPoint aligned to CCSS. "I can explain that the Earth’s surface changes over time and that there are many factors that cause those changes." This presentation stuck with my students like glue. I had them running over to me on the playground yelling that they saw erosion and weathering! This presentation incorporates pictures, demonstrations, and a BrainPop video on weathering with a short quiz. Let me know if you have any questions :)! Thank you!