Relative and Absolute Age

If layer 'W' is believed to be 200 years old, what do we know about the age of the fish skeleton? Select both correct answers.

• The fish skeleton is younger than the scallop/clam shell

• The fish skeleton is older than layer 'W'

• The fish skeleton is younger than layer 'X'

• The fish skeleton must be around 200 years old

• The fish skeleton must be around 300 years old

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

If these layers have the following ages:

Z is 1,000 years old.

Y is 800 years old.

X is 400 years old.

W is 300 years old.

V is 1 year old.

How old is the ammonite fossil? (Looks like a snail shell)

• 1,000 years old.

• 800 years old.

• 400 years old.

• 300 years old.

• 1 year old.

Tags

NGSS.MS-ESS1-4

Which of the following can change based on the comparison being made?

• absolute age

• relative age

• age in years

• age in months

How is radioactive dating used to determine the absolute age of rocks?

• The percent of radioactive parent isotopes remaining in the rock is compared to the amount of stable daughter isotopes that are present

• it compares the radioactive isotope in a younger layer of rock to an older layer

• isotopes of different compounds are compared

• daughter isotopes are compared to sister isotopes

Tags

NGSS.HS-PS1-8

Which is the most accurate form of absolute dating?

• radiometric dating

• erosion rate

• deposition rate

• index fossils

Which rock layer listed is the youngest?

• A

• B

• C

• D

• E

Tags

NGSS.MS-ESS1-4

What is relative age dating?

• A type of dating where scientists compare the age of rocks.

• A type of dating where scientists determine the actual age of a rock.

• A Law that states older objects are located beneath younger objects.

• A Law that states objects which cut across a rock layer are younger than rock layers.

What is absolute age dating?

• A type of dating where scientists compare the age of rocks.

• A type of dating where scientists determine the actual age of a rock.

• A Law that states older objects are located beneath younger objects.

• A Law that states objects which cut across a rock layer are younger than rock layers.

The Law of Superposition is an example of what?

• A technique that involves absolute age dating.

• A technique which involves relative age dating.

• An outdated principle scientists no longer use.

• All of the above.

Tags

NGSS.MS-ESS1-4

Carbon-14 dating is considered what type of technique?

• A relative age dating technique

• An absolute age dating technique

• An outdated technique that scientists no longer use.

• All of the above.