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  1. 1. Lodi School Lesson on Volcanoes
  2. 2. <ul><li>A volcano can act as a giant cooling vent for Earth’s inner core </li></ul><ul><li>2. What are the causes of a volcano? </li></ul>
  3. 3. Volcano <ul><li>What do you see in the picture? </li></ul><ul><li>What is the molten metal that makes up Earth’s core? </li></ul>
  4. 4. Volcanoes <ul><li>At Earth’s center is a core of hot liquid iron and nickel . </li></ul><ul><li>Earth is made up of interlocking pieces of land called tectonic plates </li></ul>
  5. 5. Volcanoes <ul><li>Extreme heat can cause bubbles of carbon dioxide gas in magma to expand. </li></ul><ul><li>A volcanic eruption occurs when the magma overflows </li></ul>
  6. 6. Volcanoes <ul><li>After what we have talked about what kind of Volcano do you think this is? </li></ul>
  7. 7. Volcanoes <ul><li>Where do you think this volcano is located? </li></ul>