Fossils Test Review

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of a once-living organism, often found in sedimentary rock.

Front

What is the rock layer that contains the newest fossils called?

Back

The rock layer that contains the newest fossils is typically the topmost layer.

Front

What can fossils tell us about the past?

Back

Fossils can provide information about what organisms lived in the past, how they lived, and how they evolved over time.

Front

What is amber?

Back

Amber is a type of fossil formed from tree sap that has hardened and replaced by minerals.

Front

What is petrified wood?

Back

Petrified wood is a type of fossil where the organic material has been replaced by minerals, turning it into stone.

Front

How can an organism become a fossil?

Back

An organism can become a fossil by being quickly buried in sediment, frozen in ice, or trapped in tree resin.

Front

What is a mold fossil?

Back

A mold fossil is a hollow impression left in sediment when an organism decays.

Front

What is a cast fossil?

Back

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

Front

What does it mean if an organism is extinct?

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An extinct organism is one that no longer exists and has no living relatives.

Front

What is the significance of studying fossils?

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Studying fossils helps scientists understand the history of life on Earth and how species have changed over time.