Geologic Time Scale GEODe

Approximately how old is the Earth?

• 4.5 billion years old

• 4.5 million years old

• 4,500 years old

• 4.5 trillion years old

• 1 billion years old

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NGSS.MS-ESS1-4

How long would it take to count to 4.5 billion without stopping?

• 5 years

• 10 years

• 100 years

• 150 years

• 25 years

Answer explanation

Earth's history is divided into units of varying magnitude which together comprise the:

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NGSS.MS-ESS1-4

The word "Phanerozoic" comes from the Greek and means:

Which of the following periods occurred first (is the oldest)?

• Cretaceous

• Jurassic

• Triassic

• Permian

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NGSS.MS-ESS1-4

Which of the following periods occurred during the Mesozoic era:

• Cretaceous

• Jurassic

• Triassic

• Quaternary

• Permian

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NGSS.MS-ESS1-4

These represent the greatest expanse of time on the geologic time scale.

Answer explanation

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NGSS.MS-ESS1-4

On the geologic time scale, eons are divided into:

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NGSS.MS-ESS1-4

Ancient life

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

• Hadean

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NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Middle life

• Paleozoic

• Mesozoic

• Cenozoic

• Precambrian

• Hadean

Tags

NGSS.MS-ESS1-4