Relative dating and absolute dating worksheet who is ryan from coronation street 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.Scientists are always spouting information about the ages of rocks and fossils. Well, they figure it out using two different methods: relative dating and numerical dating.Let's find out more about these geological dating methods in order to understand how Paul the Paleontologist can be so sure about the age of his dinosaur 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.Along the way, we'll learn how stratigraphic succession and radioactive decay contribute to the work of paleontologists.Consider the following scenario: Paul the Paleontologist is a very famous scientist who has studied dinosaur bones all over the world.
This is just a fancy term for the way rock layers are built up and changed by geologic processes.
In fact, Paul already knows that coelophysis lived around 200 million years ago, while iguanodon lived around 150 million years ago.
So, what if Paul found that superus awesomus dinosaur fossil in this middle layer?
In 1896, a French physicist named Henri Becquerel discovered radioactivity in an element called uranium.
He saw that it underwent radioactive decay, or emission of energetic particles to produce new elements.