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Science
tectonic plates
22
Science
6th Grade
01/20/2010

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Term
diverge
Definition
a rift valley forms where two plates
Term
plate boundary
Definition
the result of plate movement can be seen at
Term
plate tectonics
Definition
the theory that helps explain the causes of both earthquakes and volcanoes
Term
continental drift
Definition
Alfred Wegener had a theory that did not have evidence
Term
oceanic crust is younger in the middle
true or false
Definition
true
Term
convergent
Definition
the type of tectonic plate bountary involving a collision between two plates
Term
The range of data available, geolists cannot predict exatly where and when earthquakes will occur
Definition
true
Term
convergent boundaries
Definition
continental mountain ranges are usually associated with
Term
the layer of the earth made up of tectonic plate
Definition
lithosphere
Term
convection currents belo the lithosphere
Definition
appears to cause movement of Earth's tectonic plates
Term
lithosphere
Definition
the outer most, rigid layer of earth is called
Term
asthenosphere
Definition
made of solid rock that flows very slowly
Term
the existence of convection currents
Definition
not evidence to support of the theory of continental drift
Term
seismic waves
Definition
geolist us to observe Earth;s interior
Term
subduction
Definition
the process by which the ocean floor sinks beneath a deep-ocean trench and back into mantle
Term
convection
Definition
the transfer of heat by the movement of heat fluid
Term
fossils, rocks and climate
Definition
main points of evidence for continental drift
Term
mid-ocean ridge
Definition
underwater mountain chain
Term
convergent boundaries
Definition
plates that move together
Term
tectonic plates
Definition
most earthquakes occur along or near the edges of the Earth's
Term
subduction zone
Definition
one plate is forced under another plate
Term
asthenosphere
Definition
Earth's thick plastic like layer
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