Relative and Absolute Dating Review

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers

• Near the bottom of the rock layers

• In the middle of the rock layers

• Somewhat near the surface

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NGSS.MS-ESS1-4

The age of a rock compared to the ages of other rocks is the rock's

• absolute age

• geologic age

• sedimentary age

• relative age

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NGSS.MS-ESS1-4

What is the correct order of the rock layers from oldest to youngest?

• B, C, D, E, A

• E, D, C, B, A

• A, B, C, D, E

• B, C, D, A, E

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NGSS.MS-ESS1-4

Which type of dating method can be used on rock layers by applying the Law of Superposition?

• relative dating

• absolute dating

• radioactive dating

• radiometric dating

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NGSS.MS-ESS1-4

Absolute age is defined as:

• The age of rock determined by radiometric dating.

• The age of rock based on living animals.

• The age of rock based on its location.

• The age of rock determined by relative dating.

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NGSS.MS-ESS1-4

According to the law of __________, in horizontal sedimentary rock layers the oldest layer is at the bottom and the youngest layer is at the top. 

• Superposition

• Index Fossil

• Alfred Wegener

• Geologic Records

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NGSS.MS-ESS1-4

By saying: "I am older than my sister," is an example of which type of dating used in Geology:

• Relative Age/Dating

• Absolute Age/Dating

• Chronological Sibling Timelies

• Fossil Age/Dating

Relative dating principle shown in the image

• Cross-cutting relationships

• Inclusions

• Superposition

• Absolute dating

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NGSS.MS-ESS1-4

Carbon-14 has a half life of 5,730 years. A fossilized rock originally contained 200 grams of Carbon-14. When tested, the rock only contains 50 grams of Carbon-14. Approximately how old is the item?

• Approximately 11,460 years old

• Approximately 5,700 years old

• Approximately 1,000 years old

• Approximately 20,000 years old

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NGSS.HS-PS1-8

Carbon-14 is often used for radioactive dating, but it has its limitations. Uranium-238 or lead-206 are most often used to date rocks. Why would U-238 or Pb-206 be more useful than C-14 when dating rocks?

• Uranium-238 or lead-206 have longer half-lives.

• Uranium-238 or lead-206 are not commonly found in rocks.

• Carbon-14 is more accurate than Uranium-238 or lead-206 in dating rocks.

• Uranium-238 or lead-206 have shorter half-lives and are less stable isotopes.

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NGSS.HS-PS1-8