Geologic time and radiometric and relative dating

Scientists use radiometric dating (radioactive decay) to measure...

• relative time (dating)

• absolute time (dating)

• half-lives

• time of day

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

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

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

• A
• B
• C

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

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

The amount of time it takes for 50% of the remaining radioactive material to decay into stable material is called:

• radiocarbon dating
• radioactive decay
• half-life
• successive decay time

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

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

• absolute age
• geologic age
• sedimentary age
• relative age

By saying "my dad is 48 and I am 13", it would be...

• relative dating (time)

• absolute dating (time)

• law of superposition