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10-1 Fossils
• What is a fossil?• Fossils are the preserved remains
or traces of living things • How do fossils form?• Fossils form when organisms die
and are buried in sediment. The sediment hardens into rock and preserves the shape of organisms
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What is a Fossil?
• A Fossil is the the preserved remains or traces of living things.
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How do fossils form?
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How Fossils form.
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Types of Fossils: Mold
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Example of a Mold
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Mold
•A hollow area in sediment in the shape of an organism or part of an organism
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Cast
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Cast
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Cast
•Cast: a solid copy of the shape of an organism.
•This type of fossil is the opposite of a mold.
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What do cast and mold fossils have in
common?
•They both preserve details of the organism’s structure.
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Petrified Fossils
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Petrified Fossils
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Petrified Fossils
•Fossils in which minerals have replaced all or part of an organism.
•Example: petrified wood
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Carbon Film
•Carbon films are an extremely thin coating of carbon on rock
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Carbon Film
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Trace Fossils
•Provide evidence of the activities of ancient organisms.
•Example: a fossilized dinosaur footprint
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Trace Fossils
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Preserved Remains
•Remains that are preserved with little or no change.
•Examples: Animals who died in tar pits, remains of organisms preserved in ice, or amber.
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Preserved Remains
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Name the type of fossil!!
#1
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#2
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#3
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#4
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#5
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#6
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#7