Students identify the concept of an element and work with an idea that all of the millions of substances on the earth are various combinations of only 8 elements. They work with the Periodic Table of the Elements and symbols of the...

A basic overview of the earth's mantle, crust, inner core, and outer core. Also discusses how earthquake waves travel through the Earth.

The Earth is at your fingertips. Simply click on the piece you are looking for and explore.