Fossil dating online activity
This interactive asks you to choose the best absolute dating method for each layer of rock in a cliff.
These use radioactive minerals in rocks as geological clocks.We know the oldest rocks are at the bottom and the youngest are at the top, but we want some actual dates. Drag and drop the rock sample from each layer onto the dating method you think will tell us its age.You can help us choose the best absolute dating method for each rock. To learn more about the dating methods, select the image from the lab.In this interactive, learn how radiocarbon dating works, what it takes to determine a date in the lab, and why it's challenging to pinpoint a date precisely.Determining the Age of Rocks and Fossils, University of California, Berkeley. Here is an easy-to understand analogy for your students: relative age dating is like saying that your grandfather is older than you.
Absolute age dating is like saying you are 15 years old and your grandfather is 77 years old.
This lesson introduces absolute dating and a few ways in which scientists accomplish it.
The majority of the lesson focuses on radiometric dating, including an activity where students date their own "rocks and fossils".
Basic understanding of how radiometric dating works is useful.
This lesson is highly simplified, and the powerpoint describes everything the student will need to know for the activity.
Each original isotope, called the parent, gradually decays to form a new isotope, called the daughter.