Constructive and Destructive Forces Unit 5 th Grade

Constructive and Destructive Forces Unit 5 th Grade

constructive process: n the building up of the Earth’s surface including deposition, earthquakes, volcanoes, and faults

destructive process: n the tearing down of the Earth’s surface including weathering, erosion, impact of organisms, earthquakes, and volcanoes

deposition n deposits of material which is added to a landform

earthquake n underground movement in the Earth’s crust that may cause change in the lithosphere

erosion n movement of material by water or wind

weathering n the breakdown, either physical or chemical, of rocks on the Earth’s surface

fault n a deep crack in the Earth’s surface where plates slide against each other

volcano n the escape of hot, molten rock and gas from the Earth’s interior Video

delta: n an area of new land at the mouth of a river, formed from sediments carried by the river

sand dunes n a hill of sand, made and shaped by wind

decomposers n organisms that lives by feeding on and breaking down dead plants and animals

organisms n an individual form of life, such as a plant, animal, bacterium, or fungus

flood control n the use of tools such as dams and levees to reduce destruction caused by floods

beach restoration n the process of replacing sand on a beach that was lost due to erosion and deposition

seismological studies n the study of earthquakes