Build mountains ... Four types of plate tectonic activity are demonstrated in this feature. Keep an eye on the map to see where in the world the activity takes place. Also known as spreading ...

"It's pretty surreal to walk between two major pieces of Earth's crust that are drifting in different directions," Brooke ...

The movement of the plates creates three types of tectonic boundaries ... mid-ocean ridge system connects the world's oceans, making the ridge the longest mountain range in the world.

Mount Everest is part of the Himalayan mountain range in Asia where many of the world’s tallest mountains are found. Earth’s surface is made up of different sections called tectonic plates.

Mount Everest is part of the Himalayan mountain range in Asia where many of the world’s tallest mountains are found. Earth’s surface is made up of different sections called tectonic plates.

Plate tectonics give rise to Earth's mountain ranges ... in the solar system exhibit plate tectonics today. Why is our world different? "We don't know for sure," Bradford Foley, a geodynamicist ...