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Weathering/Fossil

TermDefinition
Weathering Break down of rocks
Mechanical Physical breakdown of rocks
Ice Wedging Water freezes cracking rocks
Pressure Release Exfoliation, rocks come off in layers
Plant Roots Plant roots crack rock
Abrasion Rocks wear down from water and waves
Chemical Rocks breakdown chemically
Acid Rain Causes weathering by dissolving minerals in rock
Rust Iron minerals in rocks mix with water and oxygen to from rust
Three Factors Surface area, rock composition, and climate
Erosion Weathered rock particles are moved
Fossils Traces, remains, or evidence of living things
Sedimentary Rocks Where fossils are mostly found
Mold Fossil A layer of sediment covers the living organism; impression
Cast Fossil When a mold is filled in, making a copy
Trace Footprints, burrows, feces, etc.
Amber Fossilized tree sap
Scientists Can make predictions about the ecosystem based on fossils
Created by: s52046
Popular Earth Science sets

 

 



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