Geologic Time Scale

Use relative age dating to put the rock layers in correct order from oldest to youngest.

• B, D, A, E, C

• C, E, D, A, B

• A, C, E, D, B

• C, E, D, B, A

Tags

NGSS.MS-ESS1-4

Earth is thought to be formed ______ years ago?

• 200 thousand

• 3 million

• 4.6 billion

• who knows

Tags

NGSS.MS-ESS1-4

What are fossils that are abundant, easily recognizable, short lived, and widespread called?

• Preserved fossils

• Index fossils

• Imprints

• Radioactive dating

The end of the Mesozoic Era was most likely caused by?

• A meteor

• Too much oxygen

• Lowering sea levels

• An ice age

Tags

NGSS.MS-LS4-1

Which is the youngest rock layer?

• Siltstone

• Conglomerate

• Mudstone

• Limestone

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

How does the law of crosscutting explain the age of a fault?

• The fault is younger than the rocks above it.

• The fault is younger than the rocks it cuts through.

• The fault is older than the rocks above it.

• The fault is older than the rocks it cuts through.

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 fossil is older than the fish fossil?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

In which time period are we currently living in?

• Precambrian Era

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

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

• Precambrian Era

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Tags

NGSS.MS-LS4-1