Front

What is a fossil?

Back

A fossil is the hardened remains of a living thing that died long ago.

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What does it mean if a species is extinct?

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Extinct means that a group of living things no longer exists.

Front

What is a cast fossil?

Back

A cast fossil looks just like the body part of a once-living thing.

Front

Why are there more animal fossils than plant fossils?

Back

Plants have softer bodies than animals, which makes them less likely to become fossils.

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What can fossils tell us about living things?

Back

Fossils can show that some living things have not really changed in millions of years.

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What is petrified wood?

Back

Petrified wood is a type of fossil where wood has turned into stone.

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What is a footprint fossil?

Back

A footprint fossil is an impression left by a foot of a living thing.

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What do fossils help scientists understand?

Back

Fossils help scientists understand the history of life on Earth.

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What is the process of fossilization?

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Fossilization is the process where living things are preserved in rock over time.

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Can all living organisms leave behind fossils?

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No, not all living organisms leave behind fossils.