Radiocarbon dating for kids
For example, Christian time counts the birth of Christ as the beginning, AD 1 (Anno Domini); everything that occurred before Christ is counted backwards from AD as BC (Before Christ).The Greeks consider the first Olympic Games as the beginning or 776 BC.
Fossils are found all over the world and on every continent.
When we think of fossils, the first things that come to mind are the bones of dinosaurs; but a fossil can be anything.
Footprints, flowers, even droppings; all of these things can be turned into fossils under the right conditions.
In the example above, 500 atoms are "expected" to decay. It is just what will happen on average over the course of billions and billions of atoms.
Love-hungry teenagers and archaeologists agree: dating is hard.