Relative age and absolute age dating

The statement that the oldest layer will be at the bottom in an undisturbed sequence of rock layers is called the Principle of ....

• Inclusions
• Unconformities
• Cross-Cutting Relationships
• Superposition

Tags

NGSS.MS-ESS1-4

The Principle of Cross-Cutting Relationships states that an igneous intrusion is 

• always younger than the layers it cuts across
• always older than the layers it cuts across
• the same age as the rock it melted
• none of the answers are correct

Tags

NGSS.MS-ESS1-4

Relative age dating is used to determine the...

• actual age of an event
• length of time between two events
• age of one event in comparison with other events
• rate at which a gologic process occurs

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

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

The number of years that have passed since the rock formed is the rock's

• relative age
• law of superposition
• absolute age
• index fossil

Tags

NGSS.MS-ESS1-4

Which is the most accurate form of absolute dating?

• radiometric dating
• erosion rate
• deposition rate
• index fossils

The time it takes for half of a radioactive isotopes to decay into stable isotopes is called the

• isotope decay
• radiometric dating
• half life
• absolute age

Tags

NGSS.HS-PS1-8

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

Choose the correct order of relative ages for the rock layers below, starting with the youngest, and finishing with the oldest layer.  

• A, E, B, C, D
• A, B, C, D, E
• E, A, D, C, B
• E, D, C, B, A

Tags

NGSS.MS-ESS1-4