Fossil Record 2024

Front

What is Carbon 14 used for?

Back

Carbon 14 is used to find the age of young items, specifically those that are 70,000 years or less.

Front

What does relative dating of rock layers indicate about the depth of rocks?

Back

The deeper we dig, the older the rocks get.

Front

What are fossils?

Back

Fossils are remains of once-living things.

Front

What can scientists infer if they find a fish fossil in the desert?

Back

The water covered the area long ago.

Front

What type of fossil is a trace fossil?

Back

A trace fossil is a type of fossil that provides evidence of the activity of organisms, such as footprints or burrows.

Front

What is the principle of superposition in geology?

Back

The principle of superposition states that in undisturbed rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is an unconformity in the fossil record?

Back

An unconformity is a gap in the geological record that represents a period of time where no rocks were deposited.

Front

What is a body fossil?

Back

A body fossil is the preserved remains of an organism, such as bones, teeth, or shells.

Front

What is a cast fossil?

Back

A cast fossil forms when a mold of an organism is filled with minerals, creating a replica of the original organism.

Front

What is the significance of the fossil record?

Back

The fossil record provides evidence of the history of life on Earth and shows how species have changed over time.