Examine the environmental hazards associated with volcanoes with a three-part science lesson. In the pre-lab, first graders learn that gas, landslides, ash, and lava are all hazards that come from volcanoes. They then explore...

Go on a mission to Costa Rica and Mexico, and explore the state of tropical rain forest ecosystems by examining Costa Rican caterpillars. Learn what the change in this animal's population means for the rest of the ecosystem.