Dendrochronology -- yep, that's quite a mouthful especially for kids :) But as I've said before, don't ever underestimate your child's ability or desire to learn.
So, scientists can estimate the age of the fossil by looking at the level of decay in its radioactive carbon.
At high geomagnetic latitudes, the carbon-14 spreads evenly throughout the atmosphere and reacts with oxygen to form carbon dioxide.
Carbon dioxide also permeates the oceans, dissolving in the water.
Today's project is going to allow your child to be a nature detective -- and all you need is an old stump for this one!
First, let's address the elephant in the room, shall we?
One of the most frequent uses of radiocarbon dating is to estimate the age of organic remains from archaeological sites.