"A rumble deep inside Earth. Hot, flowing magma is trapped and needs a way to escape. Pressure builds and causes a break in the surface. Eruption! Volcanic eruptions can shoot lava, ash, and smoke over a huge area. Why do they happen? Learn about volcanoes, what causes them, and how to be prepared."-- Provided by publisher.

Fire in the sky -- What is a volcano? -- Kinds of volcanoes -- Where do volcanoes come from? -- BOOM! A volcano erupts -- Famous eruptions -- Staying safe -- Benefits of volcanic eruptions.