Fossils: What Is a Fossil?

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What is a fossil?

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A fossil is the preserved remains or traces of once-living organisms, typically found in sedimentary rock.

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What type of organisms do fossils provide evidence for?

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Fossils provide evidence of extinct organisms that no longer live on Earth.

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How are fossils formed?

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Fossils are formed over long periods of time through processes such as burial, mineralization, and sedimentation.

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What is petrified wood?

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Petrified wood is a type of fossil where the organic material has been replaced by minerals, turning it into stone.

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What is the significance of studying fossils?

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Studying fossils helps scientists understand the history of life on Earth, including the evolution and extinction of species.

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True or False: A skeleton of a fish that died a month ago is considered a fossil.

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False. A fossil is typically formed over a much longer time period.

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What do scientists compare fossils to in order to learn about extinct organisms?

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Scientists compare fossils to organisms currently found on Earth.

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What is the difference between a fossil and a recent organism?

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A fossil is an ancient remnant of a once-living organism, while a recent organism is one that is currently alive or has died recently.

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What are some common types of fossils?

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Common types of fossils include molds, casts, trace fossils, and preserved remains.

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What role do sedimentary rocks play in fossil formation?

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Sedimentary rocks are the primary type of rock where fossils are found, as they form from the accumulation of sediments that can trap and preserve organic material.

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