How can sand be interesting?  Have you ever thought of what it is made of? You probably thought that sand was made of, well, sand.  We'll that's not the case really.  This is actually really interesting and over before you know it.  Grow your brain today.

I love this science quickies that are coming out these days.  This one is from a group called "Minute Earth".  If I had a kid, I'd make them watch of these each day and I'll bet they'd be the smarted kid in class, even though they basically just watched a cartoon.  Give it a try.