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3.1 Volcanoes 3.2 Properties 3.3 Volcanic 3.4 Volcanic 3.4 Volcanic & Plate Tectonics Of Magma Eruptions Landforms Landforms p. 82-85 p. 87-91 p. 91 - 98 p. 99-105 p.99-105 too1 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt Volcanic belts form along the _____________of Earth’s plates. boundaries The formation of the Hawaiian Islands is one example of volcanoes forming over a___________ Hot spot. Before lava reaches the surface, the molten material is called magma. The volcanoes along converging oceanic plate boundaries may form an island arc. Volcanoes that form along a mid-ocean ridge occur at a(n)_________________. diverging plate boundary. The viscosity of magma depends upon its silica content and its temperature. __________is fast-moving, hot lava. Pahoehoe The major ingredient of magma is __. Silica. What can be used to identify a substance or to predict how it will behave? physical and chemical properties The greater the viscosity of a liquid, the _____ it flows. slower The long tube in the ground that connects the magma chamber to Earth’s surface is called the _________________. pipe. If a volcano’s magma is high in silica, the volcano will probably _________. erupt explosively. Which of the following volcano hazards is made up of rocky particles about the size of a grain of sand? volcanic ash The main hazard from a quiet volcanic eruption is ______. lava flows. Which type of rock would you expect to form as the result of an explosive eruption? . pumice When groundwater heated by magma rises to the surface and collects in a natural pool, it is called a _____________. hot spring. In volcanic areas, groundwater heated by magma is a source of ____ geothermal energy. Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called _____ composite volcanoes. When many layers of thin, runny lava build up a high, level area, the result is a _______. lava plateau. What is the landform that forms when a mass of hardened magma is uplifted, causing the layers of rock to bend upward? dome mountain A mass of rock formed when a large body of magma cools inside the crust is called a ________. Batholith. The huge hole left by the collapse of a volcanic mountain is called a ___. caldera. When ash, cinders, and bombs build up in a steep pile around a volcano’s vent, the result is a _______. cinder cone volcano. When magma hardens in a volcano’s pipe, the result will eventually be a landform called a _______. volcanic neck. Magma that forces across rock layers hardens into a _. dike.