Moving Plates Beneath Our Feet

The theory of plate tectonics explains how Earth's outer shell is divided into giant pieces called plates that slowly shift over time. These movements create mountains, earthquakes, and volcanoes.

Types of Plate Boundaries

• Divergent: Plates move apart, forming new crust (like the Mid-Atlantic Ridge).
• Convergent: Plates collide, causing mountains or subduction zones.
• Transform: Plates slide past each other, often causing earthquakes.

Why Plates Move

Heat from inside Earth causes convection currents in the mantle, pushing plates around.

Real-World Impacts

Understanding plate tectonics helps predict earthquakes and volcanic eruptions, making communities safer.