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Rock Record

Ch.4 Fossils

DefinitionTerm
Remains or traces of an organism that lived long ago fossil
Imprint or hollow in rock that is shaped like and made by an organism mold
Mold filled with hardened sediments cast
Hardened tree sap amber
States that each undisturbed sedimentary rock layer is older than the layer above it law of superposition
Age of an object compared to the age of another object relative age
Fossil used to help determine the relative age of rock layers index fossil
natural fuel that was formed from the remains of living things fossil fuel
Created by: 6bscience112
 

 



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