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Weathering/Fossils

TermDefinition
Weathering Breakdown of rocks
Mechanical Physically breaking-down rocks
Ice Wedging Water Freezes and cracks rocks
Pressure Release Exfoliation; rocks come of in layers
Plant Roots Plant roots crack rocls
Abrasoin Rocks wear down from water
Chemical Rocks break down chemicaly
Rust Iron minerals in rocks mix with water and oxygen to form rust
Acid Rain Causes weathering by dissolving minerals in rock
Three Factors Surface area, rock combostion, and cllimate
Erosion Weathered rock particles are moved
Fossils Traces, remains, or evidence of living things
Sedimentary Rocks Where most fossils are found
Mold Fossil A layer of sediment covers the organism; impression
Cast Fossil When a mold is filled in; makes a copy
Trace Footprints, borrows,feces, etc.
Amber Fossilized tree sap
Scientists Can make predictions about a ecosystem based on fossils
Created by: s38193
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