Geologic Time Scale

Which period are we currently in?

• Quaternary
• Holocene
• Jurassic
• Tertiary

Tags

NGSS.MS-ESS1-4

Which era is the longest?

• Cenozoic
• Cambrian
• Precambrian
• Phanerozoic

Tags

NGSS.MS-ESS1-4

The geologic time scale is a record of....

• the history of fossils only
• the history of rocks
• the history of rock layers and fossils
• geologist notes

Tags

NGSS.MS-ESS1-4

Paleontologists infer that the earth is approximately how many years old?

• 4.5 million years
• 450 million years
• 450 billion years
• 4.5 billion years

Tags

NGSS.MS-ESS1-4

The picture is an example of ......

• mold fossil.
• cast fossil.
• trace fossil.
• carbonization.

Tags

NGSS.MS-LS4-1

_______________ is the long span of time that begins geologic time.

• Precambrian Time
• Cenozoic Time

Tags

NGSS.MS-ESS1-4

A unit of geologic time that subdivides eras

• period
• time span

Tags

NGSS.MS-ESS1-4

The Triassic Period, the Jurassic Period, and the Cretaceous Period occurred in what era?

• Cenozoic
• Mesozoic

Tags

NGSS.MS-ESS1-4

_________ for many of the geologic periods come from places around the world where geologists first described the rocks and fossils of the period.

•  time
• names

Tags

NGSS.MS-ESS1-4

Scientists divided the time between Precambrian Time and the present into three units of time, or eras.

• True
• False

Tags

NGSS.MS-ESS1-4