Geological Time Scale

The same natural laws in Earth's history that are present today.

• Uniformitarianism

• Law of Superposition

• Catastrophism

• The Great Dying

Tags

NGSS.MS-LS4-1

Mass extinction 252 million years ago... end of the Permian Period.

• Great Cambrian Explosion

• The Great Dying

• Uniformitarianism

• Eon

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

When most of the major groups of animals first appear in the fossil record.

• Law of Superposition

• The Great Dying

• Great Cambrian Explosion

• Era

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Chronological chart that shows the events and past lives of organisms in Earth's history.

• Geological Time Scale

• Cambrian Explosion

• Eon

• Era

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Division of periods in geological history

• Eons

• Epoch

• Era

• Law of Superposition

Tags

NGSS.MS-ESS1-4

Subdivision of an Eon and is divided into periods

• Epoch

• Era

• Period

• Catastrophism

A unit of time equal to a billion of years

• Epoch

• Era

• Period

• Eon

Events in Earth's crust that were the result of violent or sudden changes.

• Uniformitarianism

• Law of Superposition

• Catastrophism

• The Great Dying

Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

Tags

NGSS.HS-ESS1-5

What was Pangea?

• An ancient Mountain Range that divided Africa
• A large valley where civilization began.
• A supercontinent where all Earth's land masses were joined.
• A large meteor that hit Earth and destroyed all of the dinosaurs

Tags

NGSS.MS-ESS2-3