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7th Grade Inside Earth Chapter 1 Section 1 & 2

seismic waves waves caused by earthquakes
pressure a force pressing on an area
basalt dark rock with a fine texture
granite rock usually light in color with a coarse texture
mantle a layer of hot rock
lithosphere uppermost part of the mantle and the crust together form a rigid layer
asthenosphere a soft layer of the mantle
outer core layer of molten metal that surrounds the inner core
inner core a dense ball of solid metal
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
Created by: Karen Copanic