Of course, the solar system can be studied in depth for days, weeks, or months on end. But around here I try to keep the units short, fun, and educational for the little ones.
I am working on getting my son to the point to where he can brush his teeth well, independently. Hopefully this fun mini unit on brush your teeth will help.
A Child's Book of Teeth is a very entertaining book. It was originally published in 1918 by a dentist. The dentist warns not to waste your dental powder in the sink! Ha ha, thank God for the invention of toothpaste. But despite it's age, the book still has quite a bit of educational value.
Here are other booths on dental health. They are all in PDF format and are either coloring books, activity books or both.