fossils

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What is a fossil?

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A fossil is the preserved remains or traces of ancient organisms, often found in sedimentary rock.

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NGSS.MS-LS4-1

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What is a trace fossil?

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A trace fossil provides evidence of the activities of ancient organisms, such as footprints or burrows.

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What is a mold fossil?

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A mold fossil is a mark or cavity made in sediment in the shape of a shell or other body.

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What is a cast fossil?

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

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NGSS.MS-LS4-1

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What can fossils tell us about the past?

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Fossils provide scientific evidence of past life and can inform us about ancient environments and ecosystems.

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Where are the oldest fossils typically found?

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The oldest fossils are usually found in the bottom layer of sedimentary rock.

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What type of fossil is a dinosaur footprint?

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A dinosaur footprint is an example of a trace fossil.

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What do scientists learn from fossilized plants?

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Scientists can learn about what environments were like long ago from fossilized plants.

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NGSS.MS-LS4-1

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

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Fossils help scientists understand the evolution of life and changes in the Earth's environment over time.

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What is petrification?

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Petrification is the process by which organic material becomes a fossil through the replacement of its original material with minerals.

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