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Volcanoes! 3/28/14 Set up your notebook in AvidInteractive Notebook Style Please turn in your foldable if you I did not check you off yesterday Warm Up – Make a list of facts you already know about volcanoes Volcanoes • Warm Up: List of things I • Already Know about Volcanoes: • • 1. • 2. • 3. • etc Read and Answer Questions: “The Global Distribution of Volcanoes” •Pages 891-895 •Add “Geo Words” to your glossary •Answer the 6 “Check Your Understanding” questions on page 895 in full sentences 3/28/14 Bill Nye Video: “Volcanoes” List some notes from the video (click below) Volcanoes • Warm Up: List of things I • Already Know about Volcanoes: • • 1. • 2. • 3. • etc Read and Answer Questions: “The Global Distribution of Volcanoes” •Pages 891-895 •Add “Geo Words” to your glossary •Answer the 6 “Check Your Understanding” questions on page 895 in full sentences 3/25/14 Bill Nye Video: “Volcanoes” List some notes from the video (click below) 1. What evidence do geologist have that volcanoes occur on the ocean floor? • Scientists have observed these volcanoes with underwater, deep-diving submersibles. Click on volcano 2. What is the “Ring of Fire” and where is it located? • The Ring of Fire is a very active tectonic zone around the Pacific plate. • All around the shores of the Pacific Ocean. 3. Where do most volcanoes on land form? • Most volcanoes on land form at the edge form along subduction zones such as the Ring of Fire. Click below 4. How are rift valleys formed? • Rift Valleys form when two continental plates move apart from each other. Click on map 5. What are hot spots? Provide an example of a hot spot on Earth. • When a large amount of magma is under a plate, it vents upward and is called a “hot spot.” • Hot spots can be volcanoes, as in the Hawaiian Islands, or just be areas where gases are vented, as in Yellowstone. Click on image for Yellowstone thermal vents 6. Why does the horizontal scale of a Mercator projection increase with latitude? • The horizontal scale of a Mercator Projection increases and becomes distorted because it takes a spherical Earth and tries to place it on a flat map. Basic Notes (you may have missed from the video!) • Three Types of Volcanoes Basic Notes (you may have missed from the video!) • After a volcano erupts, there is a caldera Basic Notes (you may have missed from the video!) • Magma is inside the volcano. • Lava is what flows out of the volcano Do we still have active volcanoes in Washington? • Yes – 5! Any questions?