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science
Question | Answer |
---|---|
erosion | the movement of materials away from one place |
mechanical weathering | the breaking of rock into smaller pieces by gravity,ice,plants,and water |
weathering | a slow destructive process that breaks down rocks |
chemical weathering | the changing of materials in a rock by chemical processes |
landslides | occur when gravity quickly pulls rocks and dirt downhill |
earthquakes | the shaking of Earth's surface caused by the release of energy along a fault |
volcanoes | an opening in Earth's crust through which steam,lava,and ashes erupt |
floods | a great low of water over an area of dry land |
Continental shelf | the extension of the continental crust under the ocean |
Continental slope | a steep drop off at the edge of the continental shelf |
Mid ocean ridge | areas of higher elevation that extend the length of the spreading plate boundary,are formed on both sides of the new crust |
Rift zone | the notch,or valley,between the edges of the plates at a spreading plate boundary |
Ocean trench | a deep valley that forms when an ocean plate moves below another plate |
Continental landforms | landforms on the continents |
Oceanic landforms | landforms underwater |
Tide | the daily rising and falling in a regular cycle of Earth's waters on it' coast |
Current | a flow of water in a large body of water |
Barrier island | a small island along the coastline formed by the deposition of sand |
Inlet | openings between barrier islands |
Deep ocean current | a current that flows up and down |
Surface current | a current mostly caused by wind |
Resource | a supply that meets a need for materials or energy |
Conserve | when people use resources wisely |