2 What is a landform?A landform is a natural feature of the landscape or natural physical features of the Earth’s surfaceExamples include:DesertsValleysRiversPlateausStraitsMountainsArchipelagoPlainsPeninsulasHillsSwampsBeachesCanyons
4 MountainsMountains are formed when two plates converge or collide and begin to riseSome times, mountains are formed by the process of weathering and erosion.Mountains are broken down by wind, water and iceThis causes the shape of the rock to changeOther times, mountains can be formed by volcanismVolcanism is any volcanic activity
5 Examples of Mountains Adirondack Mountains Rocky Mountains Himalayan Mountains
6 PlainsPlains are broad, nearly level stretches of land that have no great changes of elevationPlains may be found along the coast or inlandCoastal plains: generally rise from sea level until they meet higher landforms such as mountains or plateausInland plains: may found at high altitudesFlood plains are the floor of a river valley beyond the riverbedThese are formed by mud, sand and silt that are carried off by the river as it erodes the land upstream
8 PlateausPlateaus are large highland areas of fairly level land separated from surrounding land by steep slopesSome lie between mountain rangesSome are basaltic, forming from many lava flowsOther are formed by upwarped foldingPlateaus may also be formed due to eroding landWeathering and erosion take affect on the upland, creating slopes
9 Examples of Plateaus Tibetan Plateau Island in the Sky- Utah Kukenan Tepui- Venezuela
10 Florida Landforms Florida consists of these major landforms: Beaches AquifersSinkholesCavernsCoastal plainsUpland (hilly areas)Swampy EvergladesFlorida Keys (archipelago)(Peninsula)
11 BeachesBeaches are formed by the constant battering of the ocean, wind and other natural conditions wear down the rock and other materials on shore
12 Aquifers & SinkholesAquifers are bodies of permeable rock that can transmit or contain groundwaterThe major source of ground water supply in Florida is the Floridan Aquifer System, which underlies the entire stateSinkholes are natural draining systems formed by chemical weatheringLimestone is dissolved, forming sinkholes
13 CavernsCaverns are natural underground spaces large enough for humans to enterThey form naturally by weathering of rock and often extend deep underground
14 Upland (hilly areas) Upland, or hilly areas, are raised areas of land In Florida, hilly areas are found in the northern panhandle and central part of the state.
15 Swampy EvergladesSwamps are types of freshwater wetlands that have spongy, muddy land and a lot of water.Many trees and shrubs grow in swampsBefore humans began developing land in South Florida, almost 11,000 square miles was covered in the swampy EvergladesThe Everglades is the only place where alligators and crocodiles can exist side by side (because of the salt and freshwater mix)
16 Florida Keys (archipelago) An archipelago is a group or chain of islands clustered together in a sea or ocean.Some archipelago are formed due to volcanic activity, while others can form due to weathering and erosion of landThe Florida Keys are an example of an archipelago
17 Optional Project (for those who would like to boost their project grade) Create a slide PowerPoint about 3 or more landforms following these guidelines:The first slide should include:Name, Date due, periodName of Landforms included in your PowerPointInclude the following information about your landforms:Description, how they are formed, picture(s), examples of your landform on EarthThe last slide should include a list of websites or references of where you found informationyour PowerPoint presentation to by A: 1/11 B: 1/14 with “Landform Project” written in the subject line of your
18 Sources http://www.edu.pe.ca/southernkings/landforms.htm Google Images htmglossary.shtml.htm
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