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7th Grade Unit 4
Catastrophic Events
Question | Answer |
---|---|
Catastrophic Event | An event, such as a hurricane or tornado, that causes extensive damage to ecosystems and humans |
Drought | A long period of little to no rainfall |
Earthquake | Faults in the earth collide and release pressure |
Tsunami | A very large wave caused by an earthquake in the ocean |
Flood | A large amount of water filling or moving in areas beyond where it normally would be |
Hurricane | An ocean storm with violent winds and rain |
Tornado | a destructive funnel of violently rotating winds |
Volcano | A mountain or hill with an opening where lava can escape |
Wildfires | a large, destructive fire that spreads quickly |
Ecoregion | an area that has similar land, soil, and species characteristics |
Weathering | The breaking down of rocks |
Erosion | The carrying away from sediments |
Deposition | The dropping of sediments after they have been carried a distance |
Processes | actions or steps |
Reshape | shape differently; change |
Environment | An area with both living and non living components |
Watershed | An area where waters from different areas flow in to a larger body of water |
Aquifer | a permeable rock area below ground which can carry water |
Ground Water | water underground |
Porosity | the ability to absorb fluids |
Permeability | the ability to allow liquids to flow through |
Percolation | The slow movement of liquid through an object |
Pollution | the introduction of something that is poisonous or harmful to an environment |
Infiltration | small groups or things moving into an area |