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8th Grade Chapte 17

depositionthe settling of materials that are carried by agents of erosion
physical weatheringa process that breaks large rocks into smaller rocks
chemical weatheringa process that changes the minerals in rocks into new substances
horizonsthe layers of developing soil that make up a soil profile
topsoilsoil that contains the humus and weathered minerals that plants need to grow
erosionthe wearing away and moving of rock materials by natural forces
tributarya stream that flows into a larger stream or river
morainea layer or ridge of till that is deposited by a glacier
watershedthe land area that supplies water for a river
glaciera large mass of moving snow and ice

Mr. Schoen

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