Geologic Time Scale

The principle that a sedimentary rock layer is older than the layers above it and younger than the layers below it if the layers are not disturbed is called ...

• unconformity
• law of crosscutting relationship
• law of superposition
• varve

Tags

NGSS.MS-ESS1-4

This rock diagram has a line running through with arrows pointing in the direction of rock movement.  What does the line represent?

• A fold
• A fault
• A tilt
• An intrusion

What is the longest unit of time?

• Eon

• Era

• Period

• Epoch

Tags

NGSS.MS-ESS1-4

What Era are we currently in?

• Paleozoic

• Mesozoic

• Cenozoic

• Triassic

Tags

NGSS.MS-ESS1-4

Which Era was dominated by dinosaurs?

• Paleozoic

• Mesozoic

• Cenozoic

• Cambrian

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which was the first period of the Mesozoic Era?

• Paleozoic
• Jurassic
• Triassic
• Cretaceous

What is the Cenozoic Era also known as ?

• Age of Mammals
• Age of Plants
• Age of Cenozoic 
• Age of Birds 

Tags

NGSS.MS-LS4-2

The era after the Precambrian characterized by the growth of multicellular organisms like plants.

• mesozoic
• cenozoic
• paleozoic
• precambrian

Which technique can be used to determine the exact age of a rock?

• Radiometric dating

• Relative dating

This period contained very large insects

• Devonian
• Carboniferous
• Cambrian
• Cretaceous