Students use ice cream glaciers and hot wax lava flows to simulate the interactions of glaciers and lava flows. By the end of the lesson, students will be able to answer the question: How do a volcano and its glaciers work together, specifically at Mount Rainier? Background Glaciers and Mount Rainier co-exist as a dynamic system Mount Rainier distinguishes itself among other Cascade volcanoes because of its widespread high-altitude slopes and extensive snow and ice cover. About 88 square kilometers (34 square miles) of snow and ice cover the mountain at summer’s end. Glaciers have covered Moun Duration: 90 Minutes.