PBS Volcano Webquest Part 1

Uncover the power of volcanoes! Your PBS Volcano Webquest is here to explore magma, lava, and where volcanoes form.

You are going to use the PBS volcanism website to help you answer all of the questions in this worksheet. Each section of this worksheet matches on of the sections on the PBS website. Views of the National Parks This this the link you will use to answer questions on this wizer.me. PBS Volcanism Website What is a Volcano Magma Chamber Dikes and Sills Magma Conduit Volcano Lava Flow Main Vent Pyroclastic Flow Who is the Roman god of fire that volcanoes are named after? Pele Vulcan Volcano Man Apollo Active, Dormant, and Extinct Match the Stage of a volcanoes life to it's description. Active is currently erupting or has erupted in recent history / can have eruptions of gases, pyroclastic material, tephra, and lava Dormant is not presently erupting and has not erupted in recent history / there is still potential for renewed activity Extinct has not erupted in recent history and is unlikely to erupt again / wind and water have broken and smoothed the shape of the mountain Types of Volcanoes Which of the following is not a volcano mentioned on the PBS website? Cinder Shield Composite Lava Dome Spatter Cones Where Volcanoes Form Which of the following is not a place where volcanoes will form? Hot Spots Transform Boundaries Spreading Centers ( divergent boundaries) Subduction There are between 50 and 100 hot spots identified around the world, and they occur in both continental and oceanic plates. True False Spreading centers can extend into continental plates, such as The Great Rift Valley in East Africa. True False Subduction occurs when two tectonic plates converge, and the denser of the two plates is pushed beneath the other plate. True False Match the description of where a volcano can form to the correct term. Subduction only happens at convergent boundaries Spreading centers another name for divergent boundaries Hot Spots Occur in the center of a tectonic plate and not along the boundaries Typically leads of the formation of shield volcanoes with non-explosive eruptions Hot Spots Typically leads to the creation of a belt of composite cone volcanoes along the plate boundary Subduction Can cause Rift Valleys on continents and is responsible for producing new sea floor made of mafic rock Spreading centers