Vocab

1st 9 Weeks

Inner Core - solid sphere in the centerof the Earth about1,200 km in radius, made up of iron, and hotter than the surface of the Sun.

Outer Core - liquid layer of the Earthoutside the core about 2,200 kmin radius, made up of iron and nickelandvery hot.

Mantle - semisolid layerdirectly under the crust, above theouter core about 2,900 km thick, made of iron and magnesium.

Crust - solid most outer layer of the Earth.

Oceanic Crust - part of the Earth's lithosphere that surfaces in the ocean basins and is more dense

Continental Crust - partof the Earth's lithosphere that surfaces the continets and is less dense.

Asthenosphrere - upper layer of the mantle.

Lithosphere - solid most out layer of the Earth composed of crust and the asthenosphere

Plasticity - ability of a solid material to undergo a permanent change to flow like a liquid.

Convection Current - transfer of thermal energyin aliquid or gas.

2nd 9 Weeks

3rd 9 Weeks

Plate Tectonics - a theory that explains the geological phenomena of the formation,destruction,movement, and interaction of the Earth's lithospheric plates

Convection Currents - the transfer of heat by the movement of a liquid or gas

Plate Boundary (Fault Line) - a boundary between two or more plates

Ocean Basin - anywhere on Earth covered by water

Volcano - a type of mountain, formed by molten rock that has erupted onto the Earth's surface

Earthquake - the result of a sudden release of energy in the Earth's crust that creates seismic waves