Eras of Geological Time

What major event leads to the birth of a new era?

• extinction

• migration

• global warming

• deforestation

Tags

NGSS.MS-LS4-1

Earth was formed around

• 1,000 yrs ago

• 4.6 billions yrs ago

• 100 yrs ago

• 46,000 yrs ago

Tags

NGSS.MS-ESS1-4

This specific time marks the "beginning of life" according to geologists.

• paleozoic era

• precambrian time

• mesozoic era

• cenozoic era

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Era of "marine life"

• cenozoic era

• precambrian

• paleozoic era

• mesozoic era

Which major event lead to to the rise of the mammals?

• the extinction of dinosaurs

• the extinction of mammals

• the birth of the age of the reptiles

• the birth of the age of marine animals

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The Paleozoic era is known as the "age of marine life". What does this mean?

• most organisms in this era lived on land

• most organisms in this era were mammals

• most organisms in this area lived in water

• most organisms in this era were plants

This is the era that we currently reside in today.

• paleozoic era

• cenozoic era

• mesozoic era

• precambrian

Which era is known as the "Age of Reptiles"?

• Paleozoic

• Mesozoic

• Cenozoic

• Proterozoic

Which era is known as the "Age of Mammals"?

• Paleozoic

• Mesozoic

• Cenozoic

• Proterozoic

What major event will lead to the rise of a new era after the cenozoic era?

• the extinction of the reptiles

• the extinction of most mammals

• the rise of the organisms who lived in water

• the extinction of amphibians

Tags

NGSS.MS-LS4-1