Geologic dating lesson

In 1905, Ernest Rutherford figured out that we could use radiation to establish the ages of rocks.By studying how the mass of uranium changed with radioactive decay, Rutherford was able to determine the age of a rock containing a uranium mineral. It meant that scientists could suddenly establish the actual ages of all their rocks and fossils!That means they don't really know how old their rocks actually are.The key in relative dating is to find an ordered sequence.

If I told you I was 32 years younger than my mother, that number would be my relative age.He could be pretty confident that his super awesome dinosaur was about 175 million years old.Stratigraphic and fossil succession are good tools for studying the relative dates of events in Earth's history, but they do not help with numerical dating.Scientists piece together a story of how one event came before or after another.Relative dating cannot tell us the actual age of a rock; it can only tell us whether one rock is older or younger than another.

Search for geologic dating lesson:

geologic dating lesson-25geologic dating lesson-75

Leave a Reply

Your email address will not be published. Required fields are marked *

One thought on “geologic dating lesson”