Geological Time

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old

Tags

NGSS.MS-ESS1-4

The Paleozoic, Mesozoic, and Cenozoic are divisions in the geologic time scale called ____

• centuries
• layers
• periods
• eras

Tags

NGSS.MS-ESS1-4

The geological time scale is divided into many subdivisions. The largest subdivision is

• Eras
• Periods
• Eons
• Epochs

Tags

NGSS.MS-ESS1-4

In which time period are we currently living?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

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

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Tags

NGSS.MS-ESS1-4

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

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Tags

NGSS.MS-LS4-1

What era did dinosaurs go extinct ?

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-LS4-1

Claire would like to show that fossils provide evidence of how old Earth is. She knows that the fossil record can be used to deduce geologic time scales and present a record of Earth’s history. Which fossils match the Precambrian time period^?

• flowers and dinosaurs

• bacteria and primitive marine plants

• coral reefs and amphibians

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1