Geological Timescale and Extinction

What is the largest division of time in the geological timescale?

• Eon

• Era

• Epoch

• Period

Tags

NGSS.MS-ESS1-4

What determines when an era or period ends?

• Climate Change

• New Species

• Mass Extinction

• Rise in temperatures

Which period did the first reptiles appear on Earth?

• Triassic

• Jurassic

• Cambrian

• Cretaceous

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which of the following is a fossil?

• a plant that has recently died

• a group of organisms that can reproduce

• a structure or organ that no longer functions

• a trace of an organisms that existed in the past

Tags

NGSS.MS-LS4-1

Which Era ended in a mass extinction because of oxygen?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic

Tags

NGSS.MS-LS4-1

Which Era ended because of volcanic activity and an asteroid or meteor hit Earth?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic

Which Era ended because of the supercontinent forming causing dry climate?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic

Tags

NGSS.MS-ESS2-3

A record of events and life forms in Earth’s History.

• Evolution

• Mass extinction

• Geological Timescale

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which Era is the Age of Humans?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic

Which Era is known as the Explosion of Life? This is where many life forms evolved.

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic