Download 6th Grade Vocabulary 6, test on Wednesday, 1/11/17

6th Grade Vocabulary 6, test on Wednesday, 1/11/17
asthenosphere - the upper portion of the mantle below the lithosphere possessing the property
of plasticity
continental crust - the relatively thick part of the earth's crust that forms the large landmasses; it is
generally older, more complex, and less dense than oceanic crust
convection - the transfer of thermal energy by the movement of particles from one part of a
material to another
crust - the solid, rocky outer layer of the earth
density - the mass per unit volume of a substance; the amount of matter that is packed
into a certain space
gravity - the attractive force that exists between all objects that have mass
inner core - the solid metal innermost part of the earth
lith- or litho- - prefix meaning "rock" or "stone"
lithosphere - the rigid outermost layer of the earth that includes the rocky plates both above
and below the ocean
mantle - the thick middle layer of the earth
magnetosphere - the earth's magnetic field caused by the movement of the liquid outer core's
motion around the solid inner core
oceanic crust - the relatively thin part of the earth's crust that underlies the ocean basins; it is
geologically young compared with continental crust and consists primarily of
basaltic rock with sediments that have settled to the bottom of the seas
overlaying the basaltic rock
outer core - a liquid layer composed mostly of iron and nickel which lies above the earth's
solid inner core
plasticity - the state of being a solid yet still having the ability to flow under certain
circumstances
sphere - a round, ball-like shape, with all points on the surface an equal distance from the
center