Students observe two demonstrations to conclude why bulge developed on the north flank of Mount St. Helens and conclude that when the "cap" was removed the pressure inside the volcano was suddenly released causing the violent eruption.

Students enjoy a hands on activity to understand how and why magma moves inside volcanoes.

Students define volcanoes and why they erupt. Using baking soda, vinegar, and soap detergent, students create and observe their own volcanoes erupting. A brain-pop video can be used to follow-up the activity (found on website).

Third graders identify and interpret natural disasters and act as experts to determine where the best location for a new farm would be. Students conduct research on an issue given as it relates to their area of expertise. Students...