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Changes to Earth Vocabulary
Vocabulary list for Changes to Earth unit
10
Science
4th Grade
01/22/2019

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Term
Erosion
Definition
The gradual wearing down of something by wind, water, and other natural forces.
Term
Weathering 
Definition
The breakdown of solid materials into very small particles by water, air, and other natural events
Term
Deposition
Definition
The build-up of land by the settlement of sediment and soil in a new location
Term
Sediment
Definition
Sand or small pieces of rock broken down by weathering and deposited on the land or at the bottom of a body of water
Term
Glacier
Definition
A large, slow-moving, long-lasting accumulation of snow and ice that develops on land
Term
Landform
Definition
Feature on the surface of Earth such as a mountain, hill, dune, ocean, or river
Term
Delta
Definition
A triangular landform where a river empties into another body of water
Term
Sand Dune
Definition
Hills formed by wind blowing and depositing sand
Term
Valley
Definition
A low area between higher areas. Can be U-shaped or V-shaped
Term
Canyon
Definition
A deep gorge in the surface of Earth formed by the erosion of moving water and sand
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