Unit Test Fossils and Geologic Time Scale

Front

What is a mold fossil?

Back

A mold fossil is an imprint left in a rock that shows the shape of an organism.

Front

What is the Law of Superposition?

Back

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

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Front

What is paleontology?

Back

Paleontology is the study of fossils and ancient life forms.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Front

What is the difference between absolute age and relative age?

Back

Absolute age is the exact age of a rock or fossil in years, while relative age is the age of a rock compared to other rocks.

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.

Tags

NGSS.MS-LS4-1

Front

What is a trace fossil?

Back

A trace fossil is evidence of an organism's activity, such as footprints, burrows, or feces.

Front

What is the significance of the geologic time scale?

Back

The geologic time scale is a system that organizes Earth's history into different time periods based on significant geological and biological events.

Tags

NGSS.MS-ESS1-4

Front

What are sedimentary rocks?

Back

Sedimentary rocks are formed from the accumulation and compaction of mineral and organic particles.

Front

What is the process of fossilization?

Back

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

Front

What is an index fossil?

Back

An index fossil is a fossil that is used to define and identify a particular time period in the geologic time scale.

Tags

NGSS.MS-ESS1-4