Geologic Time Scale

In which time period are we currently living?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Jellyfish are one of the oldest species on Earth. In what time period did they first appear?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-LS4-1

In what time period did Pangaea, the super-continent, appear?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS2-3

Dinosaurs, small mammals, and birds are found in this time period

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which time period is the longest?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4

What does "relative age" tell about rock layers or fossils?

• the age of one rock layer or fossil compared to another

• if one rock is older or younger than another

• the approximate age of the rock layer or fossil

• all of these

Tags

NGSS.MS-ESS1-4

What does "absolute age" tell about a rock layer or fossil?

• the exact age of a fossil determined by radiometric dating

• the approximate age of a fossil by using the layers above or below it

• the exact age of a fossil determined by relative age

• none of these

Tags

NGSS.MS-ESS1-4

Select all of the characteristics of index fossils:

• easily recognizable

• abundant

• wide geographic distribution

• live a long time

Use the diagram to answer. Which rock layer is the newest?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

Use the diagram to answer. Which rock layer has a fossil that is older than the fish fossil?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1