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30 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Fossil |
Remains or impression of a prehistoric organism |
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Cast Fossil |
mold is filled with sand/mud and hardens |
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Mold fossil |
Dead organism covered by sediments |
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Trace Fossil |
mud or stand hardens to stone leaving a trail |
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Petrified/ permineralized fossil |
Minerals soak into buried remains changing it to rock |
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Preserved fossil |
When whole organisms are trapped in rock, ice, tar, Amber |
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Carbonized fossil |
When a carbon imprint is left on a rock |
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Fossil record |
Placement of fossils in the earth |
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Diversity |
Range of different things |
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Realitive Age |
The approximate age of something |
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Absolute Age |
The exact age of something |
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Index Fossils |
Fossils used to find the relative age of things around |
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Law of Superposition |
Things that are under are older |
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Trilobites |
Index fossil during the Plaeozoic Era |
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Geologic Time Scale |
Record of Earths history |
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Era |
Second largest period of time |
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Period |
Third largest period of time |
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Epoch |
Fourth largest period of time |
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Precambrian Eon |
Eon that lasted 87% of Earths history |
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Plaeozoic Era |
Had warm shallow oceans |
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Mesozoic Era |
Age of the dinosaurs |
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Cenozoic Era |
Age of mammals |
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Quaternary period |
Current period |
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Holocene Epoch |
Current epoch |
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Organism |
Living thing |
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Natural Selection |
Favorable traits are passed on |
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Adaptation |
Trait that helped and organism survive |
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Variation |
Differences |
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Population |
Group of species |
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Species |
Type of organism |
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