Geologic Time

The earth is ______________of years old

• Hundreds

• Millions

• Billions

• Trillions

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Inclusions

• New rock that cuts through older rock.

• I don't know. But, if you pick this answer you will get it wrong!

• the numerical age, in years, of a rock or object.

• a principle stating that geologic processes that occur today are similar to those that occurred in the past.

What is absolute age?

• the age of rocks and geologic features compared with other nearby rocks and features.

• the numerical age, in years, of a rock or object.

The law of superposition says then in undisturbed rock layers, the oldest rocks are on the______ layer.

Tags

NGSS.MS-ESS1-4

Preserved remains or traces of living things.

• Flora

• Fossil

• Fauna

• Stratigraphy

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The numeric age of a layer of rocks or fossils. It can be determined with radiometric dating.

• Fossil Record

• Relative Age

• Law of Superposition

• Absolute Age

Describes the age of an object or event compared to another object or event. Does not give a definite date.

• Relative Age

• Absolute Age

• Law of Superspostion

• Fossil Record

Tags

NGSS.MS-LS4-1

In undisturbed rock layers, the layer on the bottom is the oldest rock and the layer on top is the youngest rock, (used to determine relative age).

• Absolute Age

• Flora

• Fossil Record

• Law of Superposition

Tags

NGSS.MS-ESS1-4

The categories of time into which Earth's history is usually divided by geologists and paleontologists: eons, eras, periods, epochs

• Law of Supersposition

• Geologic Time Scale

• Relative Age

• Fossil Record

Tags

NGSS.MS-ESS1-4

What is an index fossil?

• a fossil representative of a species that existed on Earth for a short length of time, was abundant, and inhabited many locations. You know the age of the fossil.

• A new fossil never seen before.

• Any fossil that is related to a T-Rex

• I don't know, but if I pick this one I'll get the question wrong.

Tags

NGSS.MS-ESS1-4