Volcano Types & Eruptions Explained | Grade 8 Earth Science Explore the fascinating world of volcanoes in this engaging Grade 8 Earth Science video. Learn about volcano classifications based on activity—active, dormant, and extinct—and understand the differences between explosive and effusive eruptions. Discover how volcanoes are positioned within the Earth's crust with clear examples and diagrams. This instructional video makes complex concepts easy to grasp and connects theory to real-world vo