1. The Structure of the Earth
Ms. Xiques
World Geography
Spring 2013

3. Inner Core-
Outer Core-
Mantle-
Crust-

4. The Earth’s Biosphere
Atmosphere-
Lithosphere-
Hydrosphere-
Biosphere-

5. Plate Tectonics
The surface of the earth is constantly changing due to plate tectonics and erosion and weathering.

8. Volcanoes
Earthquakes and volcanoes can occur anywhere on the surface of the earth, including underwater, but they are more common at plate boundaries.

9. New Sea Floor

10. Volcanoes
Sometimes volcanoes occur far from plate boundaries. These areas are called hot spots. A good example of a hot spot is the formation of the Hawaiian Islands in the middle of the Pacific.

11. Volcanoes
There is an area around the Pacific Ocean where many plates come together known as The Ring of Fire. This area has many active and dormant volcanoes and volcanic eruptions are frequent.