Examine how plants and animals have been able to survive on Mt. St. Helens after its massive eruption in 1980 using lesson plans, videos and interactives. Explore scientists' predictions of when the next major eruption could occur.
Examine how plants and animals have been able to survive on Mt. St. Helens after its massive eruption in 1980 using lesson plans, videos and interactives. Explore scientists' predictions of when the next major eruption could occur.