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Virtual Volcano Name _______________________ Answer the questions in yellow! Go to http://dsc.discovery.com/convergence/pompeii/interactive/interactive.html or go to your teacher’s website for the link. You have found yourself at the Volcano Explorer. Hit the enter button right below the intro paragraph. Below the spinning globe on the right hand side, there is a menu of other things to learn about. Click on “tectonic plates.” In your own words, what are tectonic plates? _____________________________ Now click on “Ring of Fire” in the bottom right hand corner. Where is the Ring of Fire located? _____________________________________ Why is it called the Ring of Fire? ______________________________________ Now click on “Layers Within.” How many layers of the core are there in this model? _____________ How many layers of the mantle are there in this model? ___________ Now go to the left hand side of the screen. Find the menu. Click on “volcano types.” How many common categories of volcanoes are there? ___________ Italy is home to what mountain that destroyed Pompeii in 79 ad? _____________ Now click on “cinder cone” in the bottom right hand side. Name two famous cinder cones mentioned here. _____________ and ____________ Now click on “shield volcano.” Where do shield volcanoes usually build from? _______________ The fluid, runny lava can flow ________________________ before cooling. How wide is Mauna Loa? ______________________ Now go back to the menu on the left hand side, and click “inside a volcano.” Why does magma naturally push upward? ___________________________ According to the picture, how would you define a fissure? ________________________ According to the picture, how would you define a dike? __________________________ Now go back to the menu and select “Build your own volcano and watch it erupt” Below where it says “Gas and Viscosity settings,” click on the bullet that says “viscosity info.” A pop-up will come up in the upper right hand corner. Describe silica levels in high and low viscosity volcanoes. ___________________ ____________________________________________________________________ Now click on “Gas Info.” What two things are the magma’s gas content made of? __________ and __________ Now go to the viscosity and gas conditions next to the moving lava. Put viscosity on high and keep gas on low. Press “Set Conditions.” What kind of volcano have you created? ________________________ Click “start eruption.” (Make sure your volume is ON but not too loud!) What kind of eruption have you created? _____________ Where are the lava tubes? __________________ Now click on “change settings” again. This time, make viscosity low and gas high. Click on “set conditions.” What kind of volcano this time? ___________ Click on “start eruption.” How was this eruption different from the last? __________________________ What’s the name for this eruption? _____________ Now set viscosity to just below the high mark, and keep gas on low. What’s the volcano type you’ve built? _____________________ How big are domes typically? ____________________ Start the eruption. In your own words, describe this eruption. _____________________________________ Hit “Change settings.” Put viscosity on high and gas on high. What kind of volcano have you created? ___________________________ Name two of these types of volcanoes. ____________________________ Start the eruption What is the name of this type of eruption? ___________________________ Name the four features on the volcano that it creates. _________________________________________ Fill in this chart to show the scale of volcanic eruptions Type of volcano Type of Eruption Intensity (high, medium, low) When you’re done, go to this site: http://dsc.discovery.com/convergence/pompeii/videogallery/videogallery.html And scroll through and watch the various videos of eruptions!