After an overview of 11 body systems, we picked our first system to study in more details. Amazing how many songs you could find about body systems! Serena particularly likes Mr. R's Digestion Song.
We watched a very interesting National Geographic video, "The Journey of the Digestive System", where they used a special camera to go inside an actual digestive tract of a person. A little yucky but very cool!
After lots of reading we have a decent idea of how our digestive system works. We collected stuff around the house and made our own digestive system model.
Do you know: our small intestine is about 20 feet long!