Explores how scientists study the inner workings of the earth using such tools as global positioning, seismology, and computer modeling.

Provides simple information about Earth's layers, including the content of the core, the planet's magnetic field, and plate tectonics.

Explore Earth's layers from the crust down to the inner core. Learn about tectonic plates, convection currents, Earth's magnetic field, and more. Additional fea

Earth's atmospheric layers include the exosphere, thermosphere, mesosphere, stratosphere, and troposphere. How and why have scientists divided Earth's atmospher

Learn about the basic materials that make up the planet Earth, to the tune of "Home on the Range."