Geologic Time, Fossils, Relative and Absolute Dating

Which of these periods is the youngest ?

• Permian

• Triassic

• Jurassic

• Cretaceous

Tags

NGSS.MS-ESS1-4

What is the Eon that we are currently in?

• Phanerozoic

• Mesozoic

• Cenozoic

• Quarternary

• Holocene

What is the Era that we are currently in?

• Phanerozoic

• Mesozoic

• Cenozoic

• Quarternary

• Holocene

Tags

NGSS.MS-ESS1-4

What is the period that we are currently in?

• Phanerozoic

• Mesozoic

• Cenozoic

• Quarternary

• Holocene

What is the epoch that we are currently in?

• Phanerozoic

• Mesozoic

• Cenozoic

• Quarternary

• Holocene

Which two fossils would make good index fossils?

• Gastropod

• Ammonite

• Trilobite

• Crinoid

Which fossil is the oldest?

• Coral

• Trilobite

• Crinoid

• Gastropod

Tags

NGSS.MS-LS4-1

Which fossil is the youngest?

• Trilobite

• Fern

• Coral

• Ammonite

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Radiometric dating involves measuring concentrations of ______________generated during radioactive decay.

• molecules

• isotopes

• neutrons

• sediment

Tags

NGSS.HS-PS1-8

Every 5,730 years, what percentage of Carbon 14 decays?

• 100

• 75

• 50

• 25