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volcanoes
| Term | Definition |
|---|---|
| volcanoes | a mountain or hill typically conical having a crater or vent through which lava rock fragment hot vapor and gas are being or have been erupted from the earth's crust. |
| lava | hot molten or semi fluid rock erupted from a volcano or fissure or solid rock resulting from cooling of this. |
| magma | hot fluid or semi fluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling. |
| ring of fire | The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. |
| hot spot | a small area or region with a relatively hot temperature in comparison to its surroundings. |
| shield volcano | a broad, domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava. |
| composite volcano | a composite volcano, is a conical volcano built up by many layers strata of hardened lava, tephra, pumice, and volcanic ash. |
| cinder cone volcano | a steep, cone-shaped hill or small mountain made of volcanic ash cinders and bombs piled up around a volcano opening |
| extinct | a volcano that is no longer active and is unlikely to erupt again |
| dormant | a volcano that is not currently active but my be in the future |
| active | is a volcano that is erupting or has shown that it may erupt in the future |
| viscosity | a liquids resistance to flowing |
| silica | a material found in magma that is formed from the elements oxygen and silicon |
| pa hoe hoe | a hot and fast type of moving lava that hardens to form smooth rope like coils |
| aa | a slow moving type of lava that hardens to form rough chunks cooler than pa hoe hoe |
| compound | a substance in which two or more elements are chemically joined |
| element | a substances in which all the atoms are the same cannot be broken down into other substances |
| sill | |
| batholith | |
| lava plateau | |
| dike | |
| volcanic ash | |
| magma chamber | |
| crater | |
| vent | |
| pipe | |
| caldera | |
| hot spring | |
| geyser |
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