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Inside the earth

geography

TermDefinition
tectonic plates enormous moving pieces of the earths lithosphere.
plates the crust is broken into different ...
plates slowly drift atop a liquid mantal.
divergent plates move apart, spreading horizontally.
convergent plates collide, causing either one plate to dive under the other or the edges of both plates to crumble.
transform plates slide past each other. create earthquakes and volcanoes.
volcano a mountain with a crater through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earths crust.
lava magma that has reached the earths surface. most volcanoes erupt with volcanic ash, which makes the area great for farming.
volcanic ash what can create its own weather ?
narrow stream of hot mantle coming up from the mantle through the crust.. creates chains of volcanoes as the plate moves across the hot spot (hawaiian islands, Galapagos Islands)
the ring of fire the most active volcano and earthquake zone on earth.
earthquake violent movement of the earth as the plates grind or slip past each other at a fault.
fault line fracture in the earths crust where plates move past eachother.
hot spots narrow stream of hot mantle coming up from the mantle through the crust.
tsunami a giant wave in the ocean caused by an underwater earthquake.
seismograph a devise that measures the size of the waves created by an earthquake
epicenter point directly above the focus of an earthquake on the earths surface.
richter scale uses information collected by seismographs to determine the strengh of an earthquake
Created by: vanessaruiz98