Unit 4: Energy Transfer in Natural Systems

Alyssa Conte
Flashcards by Alyssa Conte, updated more than 1 year ago
Alyssa Conte
Created by Alyssa Conte about 6 years ago


Flashcards on Unit 4: Energy Transfer in Natural Systems, created by Alyssa Conte on 06/09/2015.

Resource summary

Question Answer
continental drift theory proposed by wegener, theory that continents moved around don earth's surface and were joined together at one point
paleoglation term describing past periods of extensive glaciations that covered most of the continents
tectonic plates large, rigid, moveable, slabs of rock
mountain range chain of mountains
mid-ocean ridge mountain range running north to south of equator
magnetometer device that detects variations in magnetic fields
spreading ridge where magma rises from the earth's surface, cools, hardens and forms new sea floor
sea floor spreading where new magma rises and push old rock aside
plate tectonic theory states that earth's surface is broken into large plates that move apart and then rejoin
layers of the earth from inside to out inner core outer core lower mantle upper mantle crust
crust solid rock layer
2 types of crust continental crust oceanic crust
mantle thickest layer, mostly solid except for upper mantle
outer core liquid iron and nickel
inner core mostly iron, pressure keeps in solid
lithosphere & asthenosphere Lithosphere: crust and uppermost portion of upper mantle Asthenosphere: molten layer of the upper mantle
mantle convection thermal energy transfer in the mantle where light magma rises and denser magma sinks
ridge push mid-ocean ridge pushes the rest of the tectonic plate it is on away from the ridge
subduction the action of one more dense tectonic plate pushing below another less dense plate
slab pull subducting plate material pulls the rest of the attached plate toward the subduction zone and down into the mantle
plate boundary location where two plates meet and move relative to each other
divergent plate boundaries areas where tectonic plates are spreading apart
convergence plate boundaries areas where tectonic plates collide
oceanic-continental plate convergence & what is found there? ocean plate subjects under continental plate forming a trench volcano & volcanic belt
oceanic-oceanic plate convergence & what is found there? denser plate subducts under less dense plate volcanic island arc
continental-continental plate convergence & what is found there? both continental plates are colliding mountain ranges
transform plate boundary areas where tectonic plates slide past each other
focus in earth where earthquake occurs
epicenter point on earth's surface directly above the focus
3 types of waves primary wave (p-wave) secondary wave (s-wave) surface wave (l-wave)
primary waves (p-waves) underground waves that travel through earth's crust travel through solids, liquids and gases (fastest) first to arrive
surface waves (s-waves) underground waves that travel through solids (slower) second to arrive spring like
surface waves (l-waves) waves that ripple along earth's surface cause more damage than p-waves (slowest) last to arive
seismometers or seismographs machines that measure and record seismic wave energy
seismogram graph that shows the arrival times and sizes of seismic waves produced by an earthquake
3 types of volcanoes composite volcanoes shield volcanoes rit eruptions
composite volcanoes found along plate boundaries & there is an eruption
shield volcanoes form over hot spots & there is an eruption
rift eruption occur along cracks in the lithosphere & are not explosive
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