Around here we like to start homeschooling them at a young age.
Take Little Joey for instance.
Yesterday he did a couple of science experiments and learned about the density of certain objects.
He learned that a plastic spoon and an ear plug float in a fish tank....
(and that water also causes the ear plugs to expand so big there is no way they will fit in mom's ears!)
While a remote control sinks in the toilet (and also causes them to cease working)
YEP! we teach 'em young!