Age of Rocks Review

When particles of an element become unstable and release energy in the form of radiation, that element is said to be:

• Radioactive

• Relative

• On Fire

• Convection

Tags

NGSS.HS-PS1-8

The amount of time it takes for half of the particles of an element to decay is called:

• Absolute Age

• Half-Life

• Radioactivity

Tags

NGSS.HS-PS1-8

Which of the logs have experienced 2 half-lifes?

Tags

NGSS.HS-PS1-8

How much of the original radioactive element is remaining after 2 half-lives?

• 100%

• 75%

• 50%

• 25%

Tags

NGSS.HS-PS1-8

If there is 12.5% of the radioactive element left in an object, how many half-lives has it experienced?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-8

The half-life for a radioactive particle is 2,500 years. How old is an object that only has 50% of that particle remaining?

• 1,250 years

• 2,500 years

• 5,000 years

• 10,000 years

Tags

NGSS.HS-PS1-8

What is the correct age order of the rocks from OLDEST to YOUNGEST

• A,B,C,D,E

• B,C,D,E,A

• All are the same age

• A,E,D,B,C

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS1-6

Which statement is true...

• A is the oldest rock layer

• A is younger that B, but older that D

• D is older that all of the other layers

• All layers are the same age

Tags

NGSS.HS-ESS1-5

What Letter represents the most recent event?

• J

• I

• H

• G

Tags

NGSS.MS-ESS1-4

Carbon 14 has a half life of 5,730 years. If there is 50% of it left, how old is the sample?

• 5,730

• 11,460

• 2,685

• 17,190

Tags

NGSS.HS-PS1-8