Name:_________________________ Date: _________________________ PhET Glacier Simulation Google PhET Glacier Simulation Click the Play Button and Run or Install the Simulation 1. What are the two major factors affecting the expansion (growth) and retreat of glacier? 2. What three of the tools in your toolbox? How can you use them to determine specific factors that influence the movement of glaciers? 3. What is the smallest change in temperature that causes the glacier to go from advancing to retreating? What implications might this have for glaciers around the world with a warming climate? 4. Draw a picture below of a section of your glacier. Include in your drawing two of the factors from question #1 and how they influence the glacier’s movement.