Relative and Absolute dating

Scientists use radioactive decay to measure...

• relative dating

• absolute dating

• half-lives

• time of day

Tags

NGSS.HS-PS1-8

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

Geologists use radioactive dating to determine THE ABSOLUTE AGE OF ROCKS.

• True
• False

How do geologists use relative dating?

• Placing rocks in order from youngest to oldest

• Placing rocks in order by minerals they contain

• Classifying rocks by different textures

• Classifying rocks by different isotopes

_{Which rock layer in the diagram seems to be the oldest?}

• F

• E

• B

• A

Tags

NGSS.MS-ESS1-4

According to the law of superposition, which layer is the youngest?

• A

• B

• C

Tags

NGSS.MS-ESS1-4

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get

• the smellier the rocks get

• the harder the rocks get

• the older the rocks get

Tags

NGSS.MS-ESS1-4

Which layer is YOUNGER? Layer E or Intrusion D?

• Layer E

• Intrusion D

Tags

NGSS.MS-ESS1-4

Which layer is OLDER? Layer E or Intrusion A?

• Layer E

• Intrusion A

Tags

NGSS.MS-ESS1-4

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