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Fossil
Dead organisms that have been preserved.
Fossil Fuels
Fuels like coal that have been made out of fossils.
Index Fossil
A fossil that has been found in multiple areas and is only a fossil for a short period of time.
Trace fossils
Evidence of an animals activists.
Preserved Fossil
Animals trapped in amber, tar, or ice.
Petrified Fossil
When an organism dies and gets covered by sediments then minerals replace it and makes it a rock.
Mold and Cast Fossils
Mold: Empty space in a rock in the shape of an organism.
Cast: Filled in mold.
Carbon Fossil
The thin layer of carbon left behind after the organism decays.
Superposition
The youngest layer is on the top while the oldest layer is on the bottom.
Fossil Record
The fossil record is the history of life on Earth as documented by fossils, showing the different species and their evolution over time.
