Unit 4: Geologic Evolution

About when was Earth formed?

• 6.4 MYA

• 4.6 BYA

• 4.6 MYA

• 6.4 BYA

Tags

NGSS.MS-ESS1-4

Which rocks are formed by heat and pressure below the Earth's surface?

• sedimentary

• igneous

• metamorphic

What CAN'T ice cores tell us about geologic evolution?

• precipitation patterns from thousands of years ago

• gases found in ancient atmospheres

• absolute age of index fossils

• occurrences of volcanic eruptions

Earth's changes are a result of gradual, ongoing processes.

• Uniformitarianism

• Geologic Evolution

• Catastrophism

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS3-1

Igneous intrusions are _________ than the sedimentary rock layers they cut through.

• younger

• the same age

• older

Tags

NGSS.MS-ESS1-4

The law of superposition states that in ________ rock layers, older layers are below younger layers.

• undisturbed igneous

• disturbed igneous

• disturbed sedimentary

• undisturbed sedimentary

Tags

NGSS.MS-ESS1-4

____________ is used in radioactive dating of fossils, while _________ is used in radioactive dating of rocks.

• uranium, carbon

• carbon, nitrogen

• carbon, uranium

• uranium, lead

Tags

NGSS.HS-PS1-8

This helps us determine the absolute age of rocks or fossils by calculating the percentage of undecayed vs. decayed radioactive atoms.

• law of superposition

• uniformitarianism

• radiometric dating

Tags

NGSS.HS-PS1-8

Which type of fossil gives the most complete information about an ancient organism?

• Original remains

• mold fossil

• trace fossil

• cast fossil

What is a gap in sedimentary rock layers?

• fossil

• fault

• igneous intrusion

• unconformity

Tags

NGSS.MS-ESS1-4