What Is Lava?
The Big Idea
Journey into the molten heart of a volcano to discover the secrets of lava. Learn how underground magma transforms as it reaches the surface, and how it cools to create brand new land.
Key Vocabulary & Concepts

Hands-On Observation Checklist
Teacher & Parent Discussion Starters
- Why is understanding what is lava? important in everyday real life?
- What variable or factor had the biggest impact when testing the simulation?
- How does this concept connect to another science topic you have learned about?
Related Wonders
Stomach Acid
Discover the powerful chemical furnace inside your body. Learn about the incredibly strong hydrochloric acid that can dissolve metal, and how your stomach's clever protective lining keeps it from digesting itself along with your lunch.
How Do Batteries Store Energy?
Peek inside the metallic shell of a battery to discover the silent chemical war that powers our modern world. Learn how trapped ions and escaping electrons create the invisible force that fuels everything from your smartphone to electric cars.
How Do Mountains Form?
Witness the slow-motion collision of continents and discover how the Earth's crust crumples like a massive car crash to build the world's highest peaks. Learn why you can find ocean seashells at the very top of Mount Everest.
