Volcanoes & Volcanic Activity
📋 What it is
Volcanoes form where molten rock (magma) rises to the surface, often at plate boundaries.
🗣️ Coach says
A volcano is a vent where molten rock from inside Earth reaches the surface. Underground it’s called magma; erupted, it’s lava. Most volcanoes sit at plate boundaries where crust is pulled apart or pushed down and melts. Eruptions build new land — many islands are volcanoes.
🧠 Memory hook
Volcano = vent where magma reaches the surface (then it’s lava). Mostly at plate boundaries. Builds new land.
😂 Giggle
What did the mantle say to the crust?
"You're just scratching the surface!"
😲 Whoa!
The Hawaiian Islands are the tops of enormous volcanoes rising from the seafloor — measured from its base, Mauna Kea is taller than Mount Everest.
✅ Quick check: What’s the difference between magma and lava?
Say your answer out loud first — then reveal.
Magma is molten rock still UNDERGROUND; once it erupts onto the surface it’s called lava.
Location (underground vs surface) distinguishes them.
🧪 Try it! (2 minutes)
Watch a baking-soda-and-vinegar "volcano" fizz over — a safe model of pressure pushing material up.