Geologic Time Scale

When did life first appear on Earth?

• 66 mya

• 3.5 mya

• 3.5 bya

• 4.6 bya

Tags

NGSS.MS-LS4-1

When did the dinosaurs go extinct? (5th Mass Extinction)

• 66 mya

• 3.5 mya

• 3.5 bya

• 4.6 bya

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The time it takes for half of the radioactive atoms of an element to decay is

• fossils

• half life

• absolute age

• decayed life

Tags

NGSS.HS-PS1-8

A record of Earth's geological events and life forms in history is

• Scientific Theory

• Radioactive Decay

• Earth's Historic Timeline

• Geologic Time Scale

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Scientists estimate that the Earth was formed

• 4,600 years ago

• 460,000 years ago

• 4.6 million years ago

• 4.6 billion years ago

Tags

NGSS.MS-ESS1-4

The geologic time scale begins with

• Precambrian Time

• the Paleozoic Era

• the Carboniferous Period

• the Mesozoic Era

Tags

NGSS.MS-ESS1-4

In the Cambrian Explosion,

• the supercontinent broke up

• an asteroid collided with Earth

• a great number of invertebrates came into existence

• mammals spread to every environment on Earth

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The Mesozoic Era is often called the

• Age of Mammals

• Age of Fish

• Age of Reptiles

• Age of Amphibians

Which of the following are possible causes of mass extinction along the Geologic Time Scale?

• Volcanic eruptions and asteroid impacts

• Glacial melting and river formation

• Mountain building and soil erosion

• Earthquakes and tidal waves

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

NGSS.MS-LS4-1

The first humans appeared on the Geologic Time Scale during which era?

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

• Precambrian Time

Tags

NGSS.MS-ESS1-4