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30 Cards in this Set
- Front
- Back
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a river or stream that flows into a larger river
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tributary
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the point where one river or stream joins another
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confluence
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the place where a river originates
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source
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the point where a river empties into a large body of water, usually the ocean
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mouth
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the area at the mouth of a river where salt and freshwater mix
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estuary
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an area of built up sediment dropped by a river, usually at its mouth
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delta
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low, flat areas along the banks of a river where periodic flooding occurs
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flood-plain
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wide and deep enough for boats to travel
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navigable
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a point on the river where there is a waterfall or rapids
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cataract
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a point upstream on a river where boats can no longer travel due to a cataract
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fall line
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a group or chain of islands
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archipelago
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a ring-shaped coral island formed around the rim of a submerged volcano
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atoll
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shallow are in the middle of an atoll
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lagoon
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a related group of mountain ranges
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cordillera
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a high elevation boundary line that divides the rivers flowing toward one side of a continent from those that flow to the other side
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continental divide
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a low lying stretch of flat or gently rolling land
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plain
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flat, low-lying land along the sea coast
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coastal plain
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relatively flat land at high elevation
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plateau
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a large flat topped mountain with steep sides
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mesa
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a small flat topped mountain with steep sides
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butte
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a long nearly vertical cliff-like ridge that separates areas of abruptly different elevations
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escarpment
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the relatively shallow submerged border of a continent which eventually drops off the to deeper depths of the ocean
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continental shelf
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a low area mostly surrounded by higher elevation
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basin
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huge, slow moving mass of ice formed over centuries from layers of unmelted snow pressed together
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glacier
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a ridge-like mass of rock, gravel, sand, and clay left by a retreating glacier
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moraine
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steep, narrow inlet from the sea carved by a glacier that has now melted
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fjord
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narrow piece of land connecting two larger bodies of land
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isthmus
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piece of land surrounded by water on three sides
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peninsula
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narrow body of water separating two bodies of land
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strait
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indentations of a coastline from. big to small
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gulf bay inlet
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