Earth History

Front

What are the four time frames in order from oldest to youngest?

Back

Precambrian Time, Paleozoic Era, Mesozoic Era, Cenozoic Era

Front

Which era is known as the 'age of invertebrates'?

Back

Paleozoic Era

Front

What is the most recent era of time that we are currently in?

Back

Cenozoic Era

Front

During which era did the ice ages occur?

Back

Cenozoic Era

Front

How old do Paleontologists believe the Earth is?

Back

4.6 billion years old

Front

What is the Precambrian Time?

Back

The earliest part of Earth's history, covering about 88% of Earth's geological time.

Front

What significant events occurred during the Paleozoic Era?

Back

The emergence of fish, amphibians, and the first land plants.

Front

What major developments occurred during the Mesozoic Era?

Back

The age of dinosaurs and the appearance of the first mammals and birds.

Front

What characterizes the Cenozoic Era?

Back

The rise of mammals and birds, and the development of modern flora and fauna.

Front

What is the significance of the fossil record in Earth history?

Back

It provides evidence of past life forms and helps to understand the evolution of species.