Geologic Time Scale Reader

Which of the following describes what the geologic time scale is used for. (Select all that apply)

• Measures how long Earth has existed

• Describes how Earth has developed and

  changed over time

• Recognizes major events that occurred on Earth

• Predicts future events for the Earth and its organisms

Tags

NGSS.MS-ESS1-4

Reorder the geologic time categories from largest to smallest:

• EON

• ERAS

• EPOCHS

• PERIODS

Tags

NGSS.MS-ESS1-4

Which of the following is NOT an Eon of geologic time?

• Hadean

• Cenozoic

• Archean

• Proterozoic

Tags

NGSS.MS-ESS1-4

The Hadean, Archean and Proterozoic Eon are

often placed under a “supereon” known as ...

• The Cambrian

• The Precambrian

• The Phanerozoic

• The Mesozoic

Tags

NGSS.MS-ESS1-4

Organize the periods into the correct Era of geologic time:

Groups:

(a) Paleozoic

,

(b) Mesozoic

,

(c) Cenozoic

• Cretaceous

• Ordovician

• Cambrian

• Jurassic

• Carboniferous

• Neogene

• Paleogene

• Quarternary

• Devonian

• Triassic

• Silurian

• Permian

Tags

NGSS.MS-ESS1-4

In the United States, the Carboniferous time period is broken down into which 2 subgroups?

• Pennsylvanian

• Virginian

• Mississippian

• Cambrian

Tags

NGSS.MS-ESS1-4

What defines each geologic time segment?

• Early Eons

• Mass extinctions

• Eras

• The emergence of life forms

• Phanerozoic Eon

• The development of Earth's physical features

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Complex life forms began to develop around 550 million years ago. Which time period would that be?

• Precambrian

• Cambrian

• Ordovician

• Cretaceous

Tags

NGSS.MS-ESS1-4

What is the second period in the Mesozoic Era?

• Jurassic

• Triassic

• Cretaceous

• Permian

Which Era of geologic time are we currently in?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4