Earth's Geologic Time Scale and Dating

Earth is ___________ years old.

• 3 billion

• 4.6 million

• 4.6 billion

• 567 million

Tags

NGSS.MS-ESS1-4

Which is the longest time period in the geologic time scale?

• period

• era

• eon

• epoch

Tags

NGSS.MS-ESS1-4

Which era are we currently in?

• Mesozoic

• Paleozoic

• Cenozoic

• Precambrian

What is one way to model Earth's history?

• a tic tac

• a timeline

• a typo

• a typewriter

Tags

NGSS.MS-ESS1-4

Which of the following statements is false?

• 
  Scientists study rock layers and fossils when developing the geologic time scale.

• 
  The oldest known rocks on Earth are approximately 4 billion years old.

• According to the law of superposition, the youngest rock layers are at the bottom.

• Earth is constantly changing.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Which of the following methods can be used to determine the absolute age of a rock?

• Stratigraphy

• Radioactive decay

• Uniformitarianism

• Law of Superposition

All landmasses on Earth were joined as a massive supercontinent called ____________ about 300 million years ago.

• Period

• Plates

• Pangaea

• Crust

Tags

NGSS.MS-ESS2-3

Which period lasted for the longest period of time?

• Paleozoic

• Mesozoic

• Precambrian

• Cenozoic

Tags

NGSS.MS-ESS1-4

Trilobite fossils are 521 million years old. This is an example of what kind of aging?

• definitive aging

• relative aging

• absolute aging

• none of these

Tags

NGSS.MS-ESS1-4

Tyrannosaurs Rex fossils are 68 million years old and Sabretooth fossils are about 12 million years old. This is an example of what kind of aging?

• definitive aging

• relative aging

• absolute aging

• none of these

Tags

NGSS.MS-ESS1-4