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This examination of Earth's composition and forces includes the following segments:
- Energy From Earth's Interior — Shows how heat plays a fundamental role in shaping Earth's surface.
- The Earth's Crust — Explores the differences between continental and ocean crust.
- Plate Tectonics — Reviews how Earth's crust is constantly changing.
- Volcanoes — Shows how the collision of tectonic plates sends hot magma shooting up through fissures in the crust.
- Earthquakes — Explores how earthquakes are created and why some of the most dangerous ones occur on the ocean floor.
- Mountain Building — Examines how friction and stress along plate boundaries have created some of the most dramatic land forms on our planet.
