Unit 8.3 Earth's History

Front

What principle states that geologic processes occurring today are similar to those that occurred in the past?

Back

Uniformitarianism

Front

What is the stable isotope that forms after the decay of a parent isotope?

Back

Daughter Isotope

Tags

NGSS.HS-PS1-8

Front

What principle suggests that all geologic change occurs suddenly?

Back

Catastrophism

Front

What is the scientific study of the origin, history, and structure of Earth?

Back

Geology

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Front

What principle states that in undisturbed layers of rock, younger rocks lie above older rocks?

Back

Law of Superposition

Tags

NGSS.MS-ESS1-4

Front

What term describes the process of determining the age of rocks and fossils?

Back

Dating

Front

What is the difference between relative dating and absolute dating in geology?

Back

Relative dating determines the sequence of events, while absolute dating provides a specific age.

Front

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

Back

The fossil record provides evidence of past life and helps to establish the timeline of evolutionary changes.

Tags

NGSS.MS-LS4-1

Front

What is the principle of original horizontality?

Back

It states that layers of sediment are originally deposited horizontally under the action of gravity.

Front

What does the term 'stratigraphy' refer to in geology?

Back

Stratigraphy is the study of rock layers (strata) and layering (stratification).

Tags

NGSS.MS-ESS1-4