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5th: Landforms
Question | Answer |
---|---|
landforms | a natural feature on the earth's surface |
watershed | an area of land that water flows across or through |
drainage basin | the area of land that contributes water to a stream or river |
continental shelf | the part of a continent that lies under the ocean and slopes down to the ocean floor |
continental slope | a steep slope separating a continental shelf and a deep ocean basin |
mid-ocean ridge | is an underwater mountain system formed by plate tectonics |
rift zone | A large area of the earth in which plates of the earth's crust are moving away from each other, forming fractures and faults |
trench | Ocean trenches are long, narrow depressions on the seafloor |
abyssal plain | a large area of extremely flat or gently sloping ocean floor just offshore from a continent |
ocean floor | the bottom of the sea or sea floor |
natural processes | a series of events (process) caused by nature |
constructive | forces that help build up the Earth, either by depositing soil or silt in a river, or by volcanoes and lava flows that generates new land. |
destructive | forces that destroy the Earth |
deposition | is the process by which rocks, sand and sediment are deposited by the forces of erosion |
tsunamis | large and powerful ocean waves that grow in size as they reach the shore |
wave | wind causing movement of the ocean's surface |
current | a continuous flow of water in the ocean |
tide | the rising and falling of the sea |
beach | a pebbly or sandy shore |
barrier island | a long narrow sandy island running parallel to the shore |
estuary | the ocean by a sandbar or barrier island |
inlet | a bay or cove |
conservation | the careful effort to conserve our Earth's natural resources |
pollution | pollution happens when the environment is contaminated by waste chemicals and other harmful substances |
ocean shore zone | where the ocean water meets land |