History of the Earth

Front

What is relative dating?

Back

Relative dating is a method used to determine the age of fossils or rock layers by comparing them to other fossils or rock layers.

Front

True or False: The human skull is older than the fish fossil is a type of relative dating.

Back

True

Front

What type of fossil is formed when an organism is trapped in hardened tree sap?

Back

A bug trapped in hardened tree sap.

Front

According to the law of superposition, where are the oldest fossils found?

Back

Near the bottom of the rock layers.

Front

What type of fossil is created when an organism leaves an impression in a material?

Back

Mold.

Front

According to the law of superposition, which layer is the youngest?

Back

The top layer.

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 is the significance of the law of superposition in geology?

Back

It helps scientists determine the relative ages of rock layers and the fossils within them.

Front

What is a trace fossil?

Back

A trace fossil is a record of the activity of an organism, such as footprints or burrows.

Front

What is the process of fossilization?

Back

Fossilization is the process by which organic material is preserved in sedimentary rock over time.