Geologic Time Scale Test

Front

What are the two primary methods used for determining the age of rocks and fossils?

Back

Relative and Absolute Dating.

Front

What does relative age indicate about a rock layer or fossil?

Back

It indicates the age of one rock layer or fossil compared to another.

Front

What is an intrusion in geological terms?

Back

A hardened layer of magma beneath Earth's surface.

Front

What does the Law of Superposition state?

Back

Younger rock layers are on top of older rock layers.

Front

What does absolute age tell us about a rock layer or fossil?

Back

The 'exact' age of a fossil determined by radiometric dating.

Front

What is the difference between relative dating and absolute dating?

Back

Relative dating determines the order of events, while absolute dating provides a specific age.

Front

What is radiometric dating?

Back

A method used to determine the age of rocks and fossils by measuring the decay of radioactive isotopes.

Front

What is the significance of the Law of Superposition in geology?

Back

It helps to establish the relative ages of sedimentary rock layers.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.

Front

What is the principle of original horizontality?

Back

Layers of sediment are originally deposited horizontally under the action of gravity.