Planet Earth Movement of the Crust What 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 TECTONICS The 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.  VIDEO VIDEO