Geography
What makes Earth's crust so strong?
Quick fact
Earth is divided into the crust, mantle, outer core, and inner core, each with different properties.
Why this is interesting
The ground beneath us is not solid and unchanging; Earth is a dynamic planet with hidden layers constantly moving.
Read the full explanation
Understanding What makes Earth's crust so strong?
The structure of Earth explains many geographic features including mountains, volcanoes, earthquakes, and ocean basins.
A deeper explanation
Earth's internal structure drives many of the processes that shape the surface. Heat from the planet's interior creates movement in the mantle, which moves tectonic plates and changes continents over millions of years. Understanding Earth's layers connects geology, geography, and the history of life on the planet.