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Our Changing Surface
Science - Earth
Question | Answer |
---|---|
What is a spit? | elongated strip of sand coming off of a shore, deposited by longshore drift |
What is a sandbar? | a bar of sand completely within water |
What is a barrier beach? | a beach created when wave deposition forms a strip of land acting as a barrier to the mainland |
What is one land feature made by wave erosion? | Sea arch. |
Another? | Wave cut cliff. |
And another? | Sea stack. |
And another one? | Sea caves. |
What force causes a wave to slow down and break when it reaches shallow water? | Friction. |
What is a moraine? | a mound of glacial drift that is unstratified |
What is a drumlin? | smoothly rounded hill, usually narrow or oval shaped |
What is a kettle lake? | lake formed when sediment is deposited by a retreating glacier |
What is one land feature made by glacial deposition? | cirque |
Another? | horn |
And another? | arete |
And another? | U-shaped valleys |
What is till? | Till is what sediment is called when it has been deposited. They’re the same thing, only they have different names at each stage, like a caterpillar does. |
The process where wind picks up sediment and moves it is called | erosion. |
When waves crash onto the beach at an angle a is created at the shoreline. | long-shore drift |
What is a sand dune? | a ridge of sand created by the wind; found in deserts or near lakes and oceans |
What is a loess? | deposit of wind-blown sediment |
What is karst topography? | A region where the terrain has been dissolved by chemical and physical weathering of bedrock. |
What is one feature of groundwater deposition? | stalactite - deposit of groundwater when it drips from the ceiling of a cave |
Another? | stalagmite - deposit of groundwater when it drips from the ceiling and collects on the ground of a cave |
What is one feature that can form from groundwater erosion? | Cave |
And another? | Caverns |
What is the weakest agent of erosion and deposition? | Wind |
What is the strongest agent of erosion and deposition? | Water |
What is mass movement? | Mass movement is when a part of the Earth's surface shifts. |
What causes mass movement? | Gravity |
What else is water known for? | universal dissolvent |