Earth vocabulary

By Taylor and Christian

S-waves

• A TYPE of seismic waves that move up and down side to side

siesmograph

• A device that measures ground movements

P-waves

• A type of siesmic wave that expands and contract in the ground

core

• The vey center of the earths layers

mantle

• A layer of hot solid material between the crust and core

Inner core

• As dense solid sphere of iron and nickel

crust

• A thin layer of rock which the plates rest on

Outer core

• A layer of molten liquid iron that surrounds the inner core

Continental drift

• A hypothosis that the crust moves across the layers

heat

• Energy transferred from one layer to another