Planet Earth Movement of the Crust What are Landforms? How are Landforms Shaped?

Planet EarthMovement of the CrustWhat are Landforms?How are Landforms Shaped?

CORE Has two layers: Inner Core: solid Outer Core: liquid

CRUST Surface layer- solid What we see

MANTLE The middle layer Filled with Magma or

melted rock, which is a hot, dense, slow moving liquid

CONTINENTAL DRIFT

The theory that the earth’s continental plates are moving.

PLATE TECTONICSThe theory that the

earths plates interact to produce mountains, trenches, earthquakes and volcanoes.

Pangea: When all of the Earth’s continents were once joined together.

Topography: The physical features of the land.

Landscape: The shape of the land together with its cover of vegetation, water, ice, and rock; it also includes the activities of humans and other animals.

Topography terms:▪ ELEVATION▪ Used to describe the height of a landform. It is

measured from the sea level.

▪ RELIEF▪ The difference in elevation between two points on

the earth’s surface

▪ GRADIANT▪ Refers to the steepness of slopes

▪ GEOLOGY▪ Refers to the types of rocks and the history of those

rocks.

Topography terms:▪ ELEVATION▪ Used to describe the height of a landform. It is

measured from the sea level.

▪ RELIEF▪ The difference in elevation between two points on

the earth’s surface

▪ GRADIANT▪ Refers to the steepness of slopes

▪ GEOLOGY▪ Refers to the types of rocks and the history of those

rocks.

Mountain building: (magma and movements of the earths crust)

▪ Volcanic Mountains, Dome Mountains, Fold Mountains, Fault Block Mountains

Weathering: is the gradual breaking down of solid rock by exposure to air, water, animals and plants.

Erosion: the process by which the land surface is sculpted and the weathered particles are carried away, or transported, by running water, tides, wind and glaciers.

Deposition: is the depositing of the weathered particles as sediment by the agents of erosion.

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