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6th Grade - Ch. 8 Fossils
Vocabulary
6
Science
6th Grade
02/07/2013

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Cards

Term

 

fossil

Definition

 

naturally preserved evidence of life

Term

 

mold

Definition
impression of an organism that is formed when sediments harden around the organism
Term

 

cast

Definition

 

a model of an organism formed when sediment fills a mold and hardens

Term

 

fossil fuel

Definition
an energy-rich resource formed from the buried remains of once-living organisms
Term

 

index fossils

Definition

 

fossils of organisms that lived during a relatively short time span

Term

 

mass extinction

Definition

 

period of time in which a large number of species become extinct

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