Science: Earth

All the layers of air.

All things water. The oceans, lakes, rivers and ice.

Solid rock and all the layered interior of the earth.

Crust, Mantle, Outer Core and Inner Core.

The crust is thin a solid. It varies in thickness from 50km to 5km at the sea floor.

The mantle is semi-liquid rock and is 2900km thick.

The Outer Core is a layer of liquid iron and nickel and is 2250km thick.

The inner core is solid iron and nickel. It 4500 degrees Celsius and is 1200km to the center.

A plate is an area that includes both continental and oceanic crust.

An earthquake is a seismic event that occurs around the margins of plates.

Type of crust that is produced at mid-oceanic ridges.

A fault line is an area where two plates are slipping sideways past each other.

A type of current caused by heated liquids and gases.

A large mass of less dense crust which is above sea level.

A scientist who studies the processes that shape the earths crust.

The plate boundary where plates are moving sideways past each other.