TED Talks
Ted: Ted Ed: How the Heart Actually Pumps Blood
For most of history, scientists weren't quite sure why our hearts were beating or even what purpose they served. Eventually, we realized that these thumping organs serve the vital task of pumping clean blood throughout the body. But how?...
Curated OER
Kids Health: Heart
If you've ever wondered how your heart works, this movie and activity guide has the answer. [6:15]