Volcanoes+2

Standard: 1. Plate tectonics accounts for important features of Earth’s surface and major geologic events. As a basis for understanding this concept: a. Students know evidence of plate tectonics is derived from the fit of the continents; the location of earthquakes, volcanoes, and midocean ridges; and the distribution of fossils, rock types, and ancient climatic zones. d. Students know that earthquakes are sudden motions along breaks in the crust called faults and that volcanoes and fissures are locations where magma reaches the surface. e. Students know major geologic events, such as earthquakes, volcanic eruptions, and mountain building, result from plate motions. f. Students know how to explain major features of California geology (including mountains, faults, volcanoes) in terms of plate tectonics. g. Students know how to determine the epicenter of an earthquake and know that the effects of an earthquake on any region vary, depending on the size of the earthquake, the distance of the region from the epicenter, the local geology, and the type of construction in the region.
 * Plate Tectonics and Earth’s Structure**



=Volcanoes= In these three paragraphs you wiil learn many interesting and cool facts about volcanoes. You will learn about Californias Volcanoes, an Effects of Volcanoes, and Classifying Volcanoes, and Famous Volcanoes All Over the World.

Types of Volcanoes[[image:cinder_cone.gif align="right"]]
There are three kinds of Volcanoes Cinder Cone Volcanoes, Shield Volcanoes an Composite Volcanoes. A cinder cone volcano is made up of rock and ash. Cinder cones are the smallest volcanoes in califonia. Most have deep craters at their summits. Composite volcano are cone-shaped and have steep slopes. When a composite volcanoe eruptes a layer of material goes into its slope. A shield volcanoe is made up of layers of lava. It has many openings. The thin smooth lava of shield volcano flows quickly and without explosiveness of composite volcanoes.

Effects of volcanoes
Volcanoes can quickly change earths serface. Volcanoes can also set fire to forest and expel hot and poisonus gases. It can destroy whole cities and can make lava molds of people and animals. Mount Saint Helens greatly changed the land scape in North Western United States and killed dozens of people. Sometimes Volcanoes can make new island.

Californias Volcanoes
Cascade Range and Mount Shasta and lassen peeak are largest moutains in California. mount shasta has not erupted for 200 years. The eruption of lassen peak was the last major volcanic eruption in califonia. But lassen peak realeased steam ash, and lava in a series of eruption between 1914 and 1921. Lassen peak is in cascade range.

=Famous Volcanoes All Over the World= In Italy there is a volcano called the Vesvius. It erupted 79 A.D and destroyed the city of pompeii. In Indonesia there is a volcano named Mout Tambora. In 1815 it gave a eruption of 6 million more powerful then a atomic bomb. It killed 92,000 people. In Philippines a volcano named Mount Pinatubo it erupt in 1991. It was one of the largesy eruption in the 1900's. In Martinique a volcano named Mount pelee let out a cloud and destroyed the city St. Pierre. An killed 30,000 people. =Conclusion= In these three paragraphs you leanrned about volcanoes. I hope you liked these interesting paragraphs. I know me and daniela liked it. If you want to learn more about volcanoes look in your public or school library.



By:Daniela Rios Victoria Starr.