Types of Fossils Core 1

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What is a cast fossil?

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A cast fossil is a type of fossil that forms when a mold of an organism is filled with minerals or sediment, creating a replica of the original organism.

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What is a body fossil?

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A body fossil is the preserved remains of an organism, such as bones, teeth, or shells.

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What is a mold fossil?

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A mold fossil is an imprint left in sediment or rock that shows the shape of an organism.

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What is a trace fossil?

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A trace fossil is a record of the activity of an organism, such as footprints, burrows, or feces.

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What is amber?

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Amber is hardened tree sap that can preserve organisms, such as insects, trapped within it.

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What are fossils?

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Fossils are the remains, imprints, or traces of once-living organisms.

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What is an index fossil?

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An index fossil is a fossil that is used to define and identify a particular time period in the geological time scale.

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What is the difference between a mold and a cast fossil?

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A mold fossil is an imprint of an organism, while a cast fossil is a three-dimensional replica formed when the mold is filled.

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What type of fossil would dinosaur footprints be classified as?

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Dinosaur footprints would be classified as trace fossils.

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What is the significance of fossils in understanding Earth's history?

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Fossils provide evidence of past life, environmental conditions, and the evolution of species over time.