Geologic Time Lesson 1

Geologic time is divided by two types of events. Select all that apply

• Slow daily events

• Major catastrophic events that changed the globe.

Disaster examples that divide Geologic time: (select all that apply)

• Volcanic Eruptions

• Asteroid Impacts

• Global Warming

• Global Cooling

What percentage of geologic time do humans occupy.

• 0.1%

• 10%

• 50%

• 99%

Scientist think the Earth is ___ years old.

• 4,500

• 45,000

• 4.5 million

• 4.5 billion

The second broadest category of geologic time is______________?. The Cenozoic is one of them.

• era

• eon

• epoch

• period

Tags

NGSS.MS-ESS1-4

What are the names of ALL parts of the geologic time scale in correct order from broadest to narrowest?

• era, period, eon

• eon, era, period, epoch

• era, eon, epoch, period

• eon, era, epoch, period

Tags

NGSS.MS-ESS1-4

The geologic time scale is divided up 4 large units of time called:

• Eons

• Eras

• Periods

• Epochs

Tags

NGSS.MS-ESS1-4

An era is subdivided into periods

• True

• False

Tags

NGSS.MS-ESS1-4

Second longest division of geological time

• Eon

• Era

• Period

• Epoch

Tags

NGSS.MS-ESS1-4

Smallest subdivision of geological time after the period; is characterized by difference in life-forms that may vary regionally.

• Eon

• Era

• Period

• Epoch