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Key Terms

Chapter 1 Sec 1 & 2

TermDefinition
seismic waves vibrations that travel thru Earth carrying the energy released when earthquakes occur
pressure a force pressing on an area
crust the layer of rock that forms the Earth's outer skin
basalt a dark rock with a fine texture
granite a rock that usually is a light color and has a coarse texture
mantle a layer of hot rock
lithosphere the uppermost part of the mantle and the crust together form this rigid layer
asthenosphere the soft layer of rock just beneath the lithosphere
outer core a later of molten metal that surrounds the inner core
inner core a dense ball of solid metal
radiation the transfer of energy thru space
conduction heat transfer within a material or between materials that are touching
convection heat transfer by the movement of currents within a fluid
density a measure of how much mass there is in a volume of a substance
convection current the flow that transfers heat within a fluid
continental drift Wegener's idea that continents slowly, moved over Earth's surface
Pangaea all lands
fossil any trace of an ancient organism that has been preserved in rock
Created by: lkdickson