ByMadisonMollyLauren

Lindsey

Inner CoreThe center of the Earthmade of iron and nickelsolidthe most dense layer

MantleEarths second layermade of silicon, oxygen, iron, and

magnesiumIt is the least dense layerSolid

rust

Earth’s thinnest layer Earth’s last layer Earth’s outer layer

EarthThe planet on which we live on the third planet from the sun

GEOLOGYThe study of rocks

ATHENOSPHEREPart of earth’s upper mantle

LITHOSPHEREThe solid outer layer earth that consists of

the crust

PANGEA Supercontinent that existed on earth long

ago

P- WavesComes first in process of earthquakeTravels fastestGoes through both liquids and solids

S- wavesComes second in process of earthquakeTravels slower than p- wavesTravels through only solids