Layers Of The Earth Flashcards
Crust
Any more or less hard or external covering or coating
Mantle
Portion of the earths about 1800 miles thick between the crust and core
Outer core
Liquid layer about 2260 kilometers thick
Inner core
Innermost hottest party’s detected by seismological studies
Lithosphere
The crust and upper mantle of earth
Asthenosphere
Upper layer of earths mantle below lithosphere
Geomagnetism
A branch of geology concerned with the magnetic properties of the earth
Compass
An instrument containing a magnetized pointer that shows direction of magnetic north and bearings from it
Magnetic North
The direction of which the north arrow of a compass needle or other freely suspended magnet will point in response to Earth’s magnetic field
True North
North according to the earth’s axis, not magnetic north
Magnetic Field
A region around a magnetic material or a moving electric charge within which the force of magnetism asks
North Pole
The northern point of the earth’s axis
South Pole
The southern point of the earth’s axis