Homeschooling

http://www.amazon.com/exec/obidos/tg/detail/-/0590414275/qid=1110830633/sr=8-2/ref=pd_csp_2/104-4708485-6047965?v=glance&s=books&n=507846

You might try The Magic School Bus: Inside the Human Body -- the link to this book is above. Or try this book: My Big Busy Body.

http://www.amazon.com/exec/obidos/ASIN/0312490798/qid=1110830855/sr=2-1/ref=pd_bbs_b_2_1/104-4708485-6047965

Also, if you ever wanted a road trip to Pennsylvania, there is a large Children's Museum with a walk through heart. It's at the Franklin Institute and here's a link to their site:

http://www.fi.edu/giantheart/index.html

Hope some of this helped.
Kellie

If no one has suggested this-you can check out ADAM online for homeschoolers. http://www.adam.com/medlifescience/homeschool/default.asp

I can see that they mainly have items for older children but I think you can adjust it for smaller kids. I started teaching my daughter about the circulatory system when she was 4.5 and she totally got it and retained the info.
We used ADAM in our college biology course and it was awesome. They have sintructors online who will sit int he middle of an enlarged heart and walk through the entire process for you. It is very cool visually.

one thing we did was be really hands on. I had my dd breathe in deep and hold her hands on her ribs. I told her that underneath her hands were her lungs and that is where all the air went. Then I had her listen to a stethoscope and told her that was the sound of her heart beat. The heart pumped blood all throughy her body...we did the sing song head shoulders, knees, and toes for that excersize to emphasize where all the blood went from the heart. I then mentioned that the blood from the heart passed the lungs and picked up some air before it took it to the rest of the body. When the blood was out of air, it went through the heart and lungs again. My DD then used her art supplies to draw me a picture of what she knew about the heart and where all the blood went. It was really neat having her guess what color the blood would be and draw the process out. She made the air blue and blood without air green..LOL.

Hope this helps.

Jen

P.S. Some links for older kids as well.

http://sln2.fi.edu/biosci/preview/heartsee.html

http://sln.fi.edu/giantheart/index.html (gigantic heart exhibit in Philadelphia...it would be so cool to be able to walk through this with my five year old)

http://www.brainpop.com/health/seeall/ very cool site but you have to pay 9 dollars monthly for access and I think they make you agree to purchase for a year.