For our homeschool science right now, we’re working our way through the major organs in the human body. I found this site that has some pretty good information on each one, as well as games if you can access it from a computer (which I never can, so we just use the information).
I bought a roll of brown shipping paper from the Dollar Tree and traced each kid life-size. The first day, I just did that and had them draw their face in. Starting on Tuesday, we’ve been adding 3 organs a day. As of today, we’ve got the voice box, lungs, heart, liver, stomach, spleen, kidneys, gallbladder, and pancreas done. With each one, they draw in the organ and then I read the information to them. I quiz them as we go to make sure they’re retaining the information – at least a little. I’m sure we’ll have to go over the topic again during their school career, but we’re at least building a foundation here.