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The Volcano Project By: Emma Cyr, Paige Veronda, and Olivia Holmes Section 1 What are the three types of volcanoes? Shield Volcanoes • These volcanoes are low and flat and have flowing eruptions. As the lava builds up on the volcano it becomes larger. • Shield volcano Composite Volcanoes • These volcanoes have tall mountain like structures. Mount St. Helens was a famous composite volcano. A crater at the top is where the lava flows out. • Composite volcano Cinder Cone Volcanoes • These volcanoes are the simplest kind of volcanoes. They have a bowl-shaped crater where lava comes out. • When lava flows over the top it creating the rocks called cinders. • Cinder cone volcano Section 2 Why do volcanoes occur? Occurring volcanoes • Volcanoes occur when the Earths plates pull apart causing magma to rise to the surface. This is called plate tectonics. What is plate tectonics? Plate Tectonics • Plate tectonics is the study of the motion of the plates in the Earths crust. The Earths tectonic plates are in constant motion. Section 3 Where do most volcanoes occur? • They form around the Pacific Ring of Fire. • There are many volcanoes in Hawaii also. • Pacific Ring of Fire How did the Pacific Ring of Fire get its name? Pacific Ring of Fire • The ring of fire is roughly shaped like a ring. It marks the area of the greatest seismic activity in the world. • Tons of volcanoes occur here everyday. How do volcanoes form? ERUPTION!!! • A volcano is formed when magma comes up from the Earth and through the cracks in its surface. • A volcanoes magma makes up the Earths surface. • A volcano is really cooled lava. • A volcano erupting What is a hot spot? Hot Spot • A hot spot is a flow of magma that pushes through areas of weakness on the Earths crust. • Picture of Hot Spot Section 4 What is a volcano hazard? Volcano Hazards • Danger from a volcanoes destruction is called a volcano hazard. • In the past 500 years 200,000 people have lost their lives due to volcanoes. • Destroyed homes What hazards can volcanoes produce that effect people? Destruction • The accumulation of ash can affect peoples lungs. • The ash is so small that it can easily get in your lungs. The ash How do you get prepared for a volcano? Pack a first aid kit. • For the first aid kit you should provide the following: • Flashlight • Extra batteries • Extra food and water • Medicines • Dust mask Section 5 What is our favorite volcano in history? Mount St. Helens • During the past 4,000 years, Mount St. Helens has erupted more frequently than any other volcano in the Cascade Range. • Most of Mount St. Helens is younger than 3,000 years old. Mount St. Helens • The first sign of activity at Mount St. Helens in the spring of 1980 was a series of small earthquakes that began on March 16. Section 6 What is our favorite presently active volcano? Mount Aso • Mount Aso is one of the largest volcanoes from those seen all over the world • This active volcano is located in Japan on an island called Kyushu. • Mt. Aso’s crater How do people live by Mount Aso? People’s lives • There are many big cities close to active volcanoes. • People don’t seem to mind it that they could be apart of a huge disaster at any time. Section 7 Video Presentation Info • We got a lot of our information from http://volcano.oregonstate.edu/. This is our Volcano slideshow. Research done by Emma and Paige. Typing done by Olivia. WE HOPE YOU ENJOYED! Happy late valentines day!