[Free Registration/Login may be required to access all resource tools.] The lithosphere is made of the brittle crust and uppermost mantle and lies on the plastic asthenosphere. Read about the properties of the lithosphere and asthenosphere.

This resource describes how the mechanical properties of the lithosphere and asthenosphere change as the temperature and pressure increase. This can cause rocks to flow and become plastic-like.

An in-depth look at the structure and composition of Earth's mantle, with lots of visuals. Covers lithosphere, Mohorovicic discontinuity, asthenosphere, transition zone, lower mantle, the d double-prime region, mantle convection, mantle...

This is a website not only on the mantle but also about all the layers of the earth.

In this interactive lesson you will learn about the theory of plate tectonics and the three types of plate boundaries that are responsible for Earth's geologic features.

Learners investigate how mountains are formed. Concepts include the composition and structure of the Earth's tectonic plates and tectonic plate boundaries, with an emphasis on plate convergence as it relates to mountain formation....

An in-depth look at how isostasy works and the processes taking place during glaciation and the melting of glaciers. Looks at gravity and the effects of density differences within the crust and mantle, and at Earth's magnetic field and...

This site contains an in-depth explanation of the causes of earthquakes as they relate to plate tectonics, and also has many nice and easy to read pictures, maps, and diagrams of plate tectonics and earthquakes.

This is written to support and further your content learning about the dynamic nature of Earth's surface. The goal is for you to develop a conceptual understanding of landforms so that you will be able to more effectively teach...

[Free Registration/Login may be required to access all resource tools.] Identifies the various layers of the Earth, including the crust, mantle, core, lithosphere, and asthenosphere.

In this activity, students will make observations then construct a "sample" model representation of the Earth's layers. They will compare and contrast the movement and material in each layer explaining the location and what it contains.

Check out this slideshow on Plate Tectonics-The unifying theory for all other theories in the Earth sciences-Has resulted in a more detailed understanding of Earth history-Has enabled geologists to more precisely(and cheaply) discover...

This is a website to learn not only about the inner and outer core, but also about the crust and the mantle of the interior of the earth.

Describes Earth's layers, which make up the geosphere.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's interior. Review questions are included at the bottom of the study guide.