GTS: Geologic Time Scale

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

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-LS4-1

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

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Which era was the longest, taking up 88% of geologic time?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-ESS1-4

According to scientists, how long ago was the earth first formed?

• 4.5 billion years ago

• 600 million years ago

• 5 million years ago

Tags

NGSS.MS-ESS1-4

In what era did forms of life first start to show?

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian

Tags

NGSS.MS-LS4-1

In which PERIOD were cone-bearing plants dominant?

• Carboniferous

• Devonian

• Permian

• Silurian

Which era means "ancient life"?

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian

The three eras that are rich in fossil evidence are:

• Paleozoic, Mesozoic, and Cenozoic

• Triassic, Jurassic, and Cretaceous

• Quaternary, Tertiary, and Permian

• Rodinia, Laurasia, and Gondwanaland

Tags

NGSS.MS-ESS1-4

Which could contribute to a mass-extinction event?

• an earthquake

• a hot summer

• a hurricane

• a volcanic eruption

Tags

NGSS.MS-ESS3-2