Relative Age vs Absolute Age

Layer U is younger than layer Z

• Absolute age

• Relative age

Tags

NGSS.MS-ESS1-4

The fish is younger than the fern fossil but older than the bone fossil.

• Absolute Age

• Relative Age

Tags

NGSS.MS-ESS1-4

Different rock layers can b concluded to be the same relative age if they contain the same index fossil.

• Absolute age

• Relative age

Tags

NGSS.MS-ESS1-4

The estimated age is wanted

• Absolute age

• Relative age

Using Carbon-14 the fish fossil is 10,000 years old

• Absolute age

• Relative Age

Layer X was found to be 150,000 years old

• Absolute Age

• Relative Age

Tags

NGSS.HS-ESS1-6

How does absolute age differ from relative age?

• only absolute dating indicates which rock is older than another

• only absolute dating finds the age in years

• only relative dating finds the age in years

Tags

NGSS.MS-ESS1-4

If the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there 12.5% parent isotope left?

• 50 years

• 100 years

• 200 years

• 300 years

Tags

NGSS.HS-PS1-8

If the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there 25% parent isotope left?

• 50 years

• 100 years

• 200 years

• 300 years

Tags

NGSS.HS-PS1-8

Which method would you use to determine the exact age of a rock?

• Relative dating

• Absolute dating

• Stratigraphy

• Fossil correlation