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Jaeden key terms
Question | Answer |
---|---|
what is a volcano? | a weak spot in the crust where magma reaches the surface. |
what is magma? | the molten mixture of rock forming substances,gases, and water. |
what is lava? | magma that reached the surface. |
what is a ring of fire? | a volcanic belt. |
what is a island arc? | a string of islands. |
what is a hot spot? | when magma melts through the crust. |
what is a shield volcano? | a sloping mountain. |
what is a cinder cone? | a steep coned shape hill. |
what is a composite volcano | A cone shaped mountain. |
what is a caldera? | a large hole at the top of a volcano. |
what is a volcanic neck? | hardened magma in a volcanoes pipe. |
what is a dike? | a slab of volcanic rock. |
what is a sill? | a slab of volcanic rock that squeezes between layers of rock. |
what is a batholith? | a mass of rock. |
what is a magma chamber? | the pocket beneath a volcano. |
what is a pipe? | a long tube where magma moves from. |
what is a vent? | the opening through which leaves the volcano |
what is a lava flow? | the area covered by lava which pours out of the vent. |
what is a crater? | a bowl shaped area around a volcano. |
what is a silica? | the material that is formed by oxygen. |
what is a pahoehoe? | hot moving lava. |
what is aa? | cool moving lava. |
what is pyroclastic flow? | the expulsion of ash,cinders,bombs, and gases. |
what is active? | a volcano that will erupt. |
what is dormant? | a volcano that is sleeping or might erupt. |
what is extinct? | a volcano that wont erupt. |
what is a hot spring? | a pool formed by groundwater. |
what is a geyser? | fountain of water and steam. |
what is geothermal energy? | heat energy in earth's interior. |