Integrate STEM in your classroom with Volcano STEM challenges! Students learn the basics of volcanoes and eruptions using 2 separate Science experiments. In the Volcano Investigation, students predict which two substances, when mixed together, will create the largest explosion. In the Volcano Engineering STEM Challenge, students try to build a barrier to stop the flow of 'lava'. Students plan, design, and execute their own ideas. After they have completed their activity, there is time for reflec