Gelatin Model of Magma Intrusion: Intrusive vs. extrusive

Classroom demonstration using gelatin as a model for teaching magma injection into Earth's crust. The gelatin provides a see-through medium as an analogy for the crust. Roger Groom (teacher at Mount Tabor Middle School) discusses and shows how injecting chocolate syrup (magma) into the gelatin creates dikes and sills, similar to what can occur beneath a volcano.

Total Time: 6min 35s
Level: Novice

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