8th grade mr. Hardy

Question Answer
Carbon film Thin film of carbon residue preserved as a fossil
Cast A type of body fossil that forms when crystals fill a mold or sediments wash into a mold and harden and harden into rock
Fossil Remains, imprints, or traces of prehistoric organisms that can tell when and where organisms once lived and how they lived
Index fossils Remains of species that existed on earth for a relatively short period of time
Mold A type of body fossils that forms in rock when an organism with hard parts is buried, decays or dissolves and leaves a cavity in the rock
Per-mineralized remains Fossils in which the spaces inside are filled with minerals from groundwater

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