Geologic history & Fossils SOL Review

Front

What are the two characteristics of an index fossil?

Back

An index fossil must be geographically widespread and existed for a geologically short period of time.

Front

What is the age of a rock with 25% 14C?

Back

11,400 years.

Front

What is the letter D in the geologic time scale?

Back

Palezoic.

Tags

NGSS.MS-ESS1-4

Front

What is a chart that divides Earth's history into units called?

Back

Geological time scale.

Tags

NGSS.MS-ESS1-4

Front

What is the term for the change over time in populations of related organisms?

Back

Biological evolution.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Front

What is an index fossil?

Back

A fossil that is used to define and identify a particular time period in the geologic time scale.

Tags

NGSS.MS-ESS1-4

Front

What does the geological time scale represent?

Back

It represents the history of Earth divided into different time units.

Tags

NGSS.MS-ESS1-4

Front

What is the significance of fossils in understanding Earth's history?

Back

Fossils provide evidence of past life and help scientists understand the evolution of organisms.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Front

What is carbon dating?

Back

A method used to determine the age of an object containing organic material by measuring the amount of carbon-14 it contains.

Front

What are the main divisions of the geological time scale?

Back

Eons, eras, periods, and epochs.

Tags

NGSS.MS-ESS1-4