Unit 2 Geographical Features

Landforms Continent – One of the seven major landmasses on Earth. They are: North America, South America, Antarctica, Europe, Asia, Africa, and Oceana Island – A relatively small landmass (compared to a continent, for example) completely surrounded by water. Ex: Galveston Island, Isle of Britain Archipelago – A chain or group of islands; sometimes formed by underwater mountain/volcano ranges; others are groups of coral islands. Ex: Hawaii, the Bahamas Peninsula – An area of land nearly, but not completely, surrounded by water. Ex: Florida, Italy, the Iberian Peninsula Isthmus – A narrow neck of land that connects two larger land masses together. Ex: the Isthmus of Panama Delta – Landmass that is created when the soil, silt, sediment, etc. carried by a river slowly builds up over time at the mouth of the river where it meets a lake or ocean. Advantages: fertile soil for farming. Disadvantages: Erodes, sinks easily. Ex: Mississippi River Delta; Nile River Delta Desert – An area of land with little or no precipitation or vegetation. Two types: true deserts (no sources of precipitation or water; ex: Sahara and Atacama Deserts) and semi-arid deserts (some precipitation; ex: American Southwest) Plain – a flat area of land, typically near sea level, with moderate to heavy amounts of precipitation and vegetation, usually grasslands. Ex: The Great Plains Canyon – A narrow, deep valley, generally through areas of sedimentary rock, eroded away by a moving stream of water such as a river over a long period of time, typically millions of years. Ex: Grand Canyon, created by the flow of the Colorado River Plateau – A large, flat, elevated area of land. Ex: The Edwards Plateau in central Texas. Mesa – A flat, rocky hill with steeply sloping sides; Often created through the process of erosion over long periods of time. Similar to a plateau only much smaller. Forest – Any large area of land covered in trees and other forms of vegetation. Different types of forests: deciduous (seed bearing), coniferous (cone bearing, found typically at higher altitudes), and rainforests (dense tropical forests also known as jungles). Tundra – Cold area of land with a permanently frozen layer of topsoil called permafrost. Typically very little vegetation since roots cannot penetrate the frozen soil. Ex: much of the area near the Arctic Circle is made up of tundra. Mountain - An elevated portion of the Earth’s surface, usually part of a chain, with steep sides that rise to a high peak or summit. Ex: Mount Everest in the Himalaya Range. Valley – A low lying area between elevated areas.

Examples of Landforms Desert Archipelago Delta Canyon Plain Plateau Mesa Rainforest (Jungle) Coniferous ForestTundraMountains Isthmus Valley Peninsula

Bodies of Water Bay – An inlet of the ocean or part of the ocean bordering on land and partly surrounded by land. Ex: Galveston Bay Bayou – A slow, sluggish stream usually used to describe inlets from the Gulf of Mexico or from the Mississippi River. Ex: Buffalo Bayou Canal – A man-made channel filled with water used for navigation, irrigation, or drainage. Ex: Panama Canal Channel – A narrow strip of water, usually one that ships use because of its greater depth. Ex: Houston Ship Channel Fjord – A deep, narrow inlet of the sea, between high, steep banks; most are located near the polar regions of the planet. Ex: Fjords in Scandinavia. Glacier – A large sheet or stream of ice that flows from high elevations, where temperature is low, to lower, warmer elevations Gulf – An area of water bordering on, and lying within a curved coastline, usually larger than a bay and smaller than a sea. Ex: Gulf of Mexico Harbor – A sheltered body of water where ships anchor and are protected from storms Inlet – A small opening between a small and a larger body of water. Lagoon – A pool of shallow water connected to the sea by an inlet; water enclosed by coral islands Lake – An inland body of water of usually considerable size Ocean – One of the five major bodies of saltwater on Earth. Ex: Pacific Ocean Reservoir – A man-made lake, usually made by damming a stream or river. Ex: Lake Mead in Nevada River – a large stream of water of natural origin, which drains an area of land and flows into another river or body of water. Ex: Mississippi River Sea – a body of water that has some type of geographical or natural boundary, but is rarely fully enclosed and often composed of salt water. Ex: Caribbean Sea

Examples of Bodies of Water Sea River Canal Fjord GlacierHarbor Lake ReservoirLagoon