Fossils are remains or traces of ancient living things.

They form when plants or animals are buried in sediment.

Fossils help scientists learn about prehistoric life.

Common fossils include bones, shells, and footprints.

Fossils show how species have changed over time.

They help explain Earth’s history and past environments.

Studying fossils is called paleontology.

Fossils can be found in rocks and sediment layers.

Not all organisms fossilize; conditions must be right.

Fossils connect us to life millions of years ago.