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8 Cards in this Set
- Front
- Back
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Carbonized Fossil |
Forms when organisms or parts are pressed between layers of soft mud or clay that hardens squeezing almost all the decaying organisms away leaving the carbon imprint in the rock. |
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Cast Fossil |
Forms when a mold is filled with sand or mud that hardens into the shape of the organism |
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Fossil |
The preserved remains or traces of an organism that lived in the past. |
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Fossil Record |
Gives important information about past life and environments on earth; extinction of life-forms as well as how and when new life-forms appeared is part of this |
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Mold Fossil |
Forms when sediments bury an organism,change into rock, organism decays leaving a cavity in the shape of the organism |
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Petrified Fossil |
Forms when minerals soak into buried remains, replacing the remains, and changing them into rock |
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Preserved Fossil |
Forms when entire organisms or parts of organisms are prevented from decaying by being trapped in rock, ice, tar, or Amber |
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Trace Fossil |
Forms when the mud or sand hardens into stone where a footprint,trail,or burrow of an organism was left behind |
