Fossils and Earth's History

What is the law of superposition?

• It states that all rock layers are the same age.

• In undisturbed rock layers, the older rock layer is at the bottom and the newer rock layer is at the top.

• It is a method to determine the absolute age of rocks.

• Older rock layers are at the top and newer ones at the bottom.

Tags

NGSS.MS-ESS1-4

Which type of fossil is formed when minerals replace all or part of an organism?

• Amber fossil

• Mold fossil

• Petrified fossil

• Trace fossil

What is an index fossil?

• A fossil that is formed in amber.

• A fossil that is found only in one location.

• A fossil that is used to determine the absolute age of rocks.

• A fossil of organisms that existed for a short time span, widely distributed, and easily recognizable.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

What is a trace fossil?

• A fossil that provides evidence of the behaviors of ancient organisms.

• A fossil that is formed in ice.

• A fossil that is formed from tree sap.

• A fossil that is formed from minerals replacing an organism.

Tags

NGSS.MS-LS4-1

What is a cast fossil?

• A fossil that is formed in tree sap.

• A fossil that is formed by freezing.

• A 3D fossil formed when a mold is filled with minerals, sediment, sand, or mud.

• A fossil that is formed by carbon film.

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Preserved remains or traces of an organism (plant or animal) that lived in the past.

• fossil

• igneous rock

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

How do scientists know that some mountains were once at the bottom of an ocean?

• Marine fossils have been found on the peaks of some mountains.

• Saltwater fish are found in some mountain streams.

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

The diagram shows a section of land that has been undisturbed and includes a fossil.What can be concluded about the fossil?

• The fossil is approximately the same age as the limestone.

• The fossil is older than the shale.

Tags

NGSS.MS-ESS1-4

A scientist who studies ancient life/fossils is a:

• Paleontologist

• Archaeologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which letter matches with the OLDEST layer of rock?

• Y

• X

Tags

NGSS.MS-ESS1-4