Warm-up: Geologic Time Scale

Front

What is the Geologic Time Scale?

Back

A system of chronological dating that relates geological strata to time, dividing Earth's history into different intervals.

Front

What are the four main Eras of the Geologic Time Scale?

Back

Precambrian, Paleozoic, Mesozoic, Cenozoic.

Front

Which Era is known for the dominance of dinosaurs?

Back

Mesozoic Era.

Front

What is the current Era we are living in?

Back

Cenozoic Era.

Front

What significant event usually marks the end of an Era?

Back

A Mass Extinction.

Front

What organisms filled the oceans at the end of the Precambrian Era?

Back

Multi-cellular organisms like sponges, jellyfish, and worms.

Front

How much of Earth's history occurred during the Precambrian Era?

Back

90% of Earth's history.

Front

What is the significance of the Paleozoic Era?

Back

It is known for the development of early life forms, including fish, amphibians, and reptiles.

Front

What major event occurred at the end of the Paleozoic Era?

Back

The Permian-Triassic extinction event, the largest mass extinction in Earth's history.

Front

What are the main characteristics of the Cenozoic Era?

Back

It is characterized by the rise of mammals and birds, and the development of modern flora and fauna.