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Relative Age
It is the age of rocks and other geological features compared with other rocks and features nearby
Superposition
The first principle of relative dating is the undisturbed rock layers; the oldest are on the bottom layer and the youngest are on the top.
Index fossils
Representation of species that have existed on earth for a short time and inhabited many locations and were abundant.
body fossils
A part of the original organism that’s been preserved
trace fossils
Evidence of animal activity’s and are the most common title of fossils can be animal tracks and nest and ETC.
Mold fossils
when the organism / animal dies and leaves a mold of the fossil it once was.
Fossil fuels
All the oil, gas and coal was formed from the remains of fossilized plants and animals
Fossil Record
The sum total of what we know about fossils
Preserved Remains
Some organisms get preserved in or close to their original state like amber , tar and , ice
Petrified Fossils
Means turned into rock or fossilized by dying , covered in sediment and minerals replace the bone teeth and shells turning it into rocks
Carbon film fossils
The thin layer of carbon left behind after the organism decays is a carbon film fossil like plants and animals
Mold & Cast Fossils
Mold: empty space in rock in the shape of an organism
Cast: filled the mold
Note 
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