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The upside of potassium-argon dating, though, is that much older samples can be tested.
With potassium-argon dating, scientists can figure out the age of samples that are billions of years old.
You find something extraordinary and want to know as much about it as you can.
There are two main categories by which they do this: relative age dating and absolute age dating.
In relative age dating, scientists study a material and compare it to other similar materials in order to establish a timeline.
In this lesson, you'll learn how scientists determine the absolute age of materials.
Scientists who study the ancient Earth have been working for hundreds of years to build an accurate timeline of the formation of the planet and the evolution of all life. In order to build and improve this timeline, scientists must have several types of accurate methods they can use to determine the ages of materials.
There are many different types of absolute age dating methods because many different types of materials exist.