Time Scale

How old do Paleontologists believe the Earth is?

• 2015 years old

• 3600 million years old

• 4500 million years old

• 4.6 million years old

Tags

NGSS.MS-ESS1-4

Which of the following places the geologic time eras in order from oldest to most recent?

• Precambrian, Paleozoic, Mesozoic, Cenozoic
• Mesozoic, Cenozoic, Paleozoic, Precambrian
• Cenozoic, Mesozoic, Paleozoic, Precambrian
• Paleozoic, Cenozoic, Precambrian, Mesozoic

Tags

NGSS.MS-ESS1-4

The ______________ era covers almost 90% of earth's history.

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

According to the law of superposition, which layer is the youngest?

• A
• B
• C

Tags

NGSS.MS-ESS1-4

• 1
• 2
• 3
• 5

Tags

NGSS.MS-ESS1-4

Relative age of a rock is the number of years that have passed since the rock formed?            

• True
• False

Tags

NGSS.MS-ESS1-4

The Geologic Time Scale is a record of what?

• old geologists
• sweet geology music
• the known history of rocks and fossils
• a list of every living thing ever

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The Cenozoic is

• an eon

• an era

• a period

• an epoch

Eras a broken into 

• eons
• periods
• epochs
• millions of years

Tags

NGSS.MS-ESS1-4

Of the following organisms, which was around (or has been around) for the shortest amount of time?

• Dinosaurs
• Mammals
• Humans
• Reptile