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Java Games: Flashcards, matching, concentration, and word search. |
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Volcanic terms
matching, flashcards, concentration, and word search
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| magma | molten mixture of rock-forming substances, gases and water from the mantle |
| lava | magma that has reached the surface |
| a volcanic eruption is | the gases dissolved in magma rush out, carrying the magma with them |
| magma chamber | magma collects inside a pocket within the volcanoe |
| pipe | a long tube in the ground that connects the magma chamber to the Earth's surface |
| lava flow | an area covered by lava as it pours out of a vent |
| crater | bowl-shaped area that may form at the top of a volcano around the volcano's central vent |
| silica | a material that is formed from the elements oxygen and silicon |
| Pahoehoe | fast moving, hot lava (note: you don't really need to know this but it is a fun word) |
| pyroclastic flow | an explosive eruption hurls out ash, cinders, and bombs as well as gases |
| active | is erupting or shows signs that it may erupt in the near future |
| dormant | "sleeping" stage, where as it might erupt in the future |
| extinct | unlikely to erupt again |
| hot spring | groundwater has heated by a nearby body of magma rises to the surface and collects in a natural pool |
| geothermal energy | water heated by magma can provide this type of energy |
| Washington U.S.A. | Mount St. Helens |
| Philippines | Mount Pinatubo |
| Indonesia | Mount Krakatau |
| Martinique | Mount Pelee |
| Alaska, U.S.A. | Mount Katmai |
| cinder cone volcanoe | simplest type of volcano. They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone. Most of these types of volcanoes cones have a bowl-shaped crater at the summit and rarely rise more than a thousand feet or so above their surroundings. |
| Composite volcanoes (also called stratovolcanoe) | They are typically steep-sided, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks, and bombs and may rise as much as 8,000 feet above their bases. Some of the most conspicuous and beautiful mountains in the world are these types of volcanoes, including Mount Fuji in Japan, Mount Cotopaxi in Ecuador, Mount Shasta in California, Mount Hood in Oregon, and Mount St. Helens and Mount Rainier in Washington. |
| sheild volcanoes | these volcanoes are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape. They are built up slowly by the accretion of thousands of highly fluid lava flows called basalt lava that spread widely over great distances, and then cool as thin, gently dipping sheets. Lavas also commonly erupt from vents along fractures (rift zones) that develop on the flanks of the cone. Some of the largest volcanoes in the world are these types of volcanoes. |
| lava domes | formed by relatively small, bulbous masses of lava too viscous to flow any great distance; consequently, on extrusion, the lava piles over and around its vent. grows largely by expansion from within. As it grows its outer surface cools and hardens, then shatters, spilling loose fragments down its sides sometimes it forms craggy knobs or spines over the volcanic vent, whereas others form short, steep-sided lava flows known as "coulees." |
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APES instructor, Physics instructor,environmental club sponsor |
Wheeling High School, Wheeling, IL |
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