Blood & Circulation
- Episode aired Mar 4, 1994
- TV-Y
Bill Nye's scientific lecture about our blood and circulatory system. He explains how valves, blood cells, and the circulatory system operate together to pump up in our hearts.Bill Nye's scientific lecture about our blood and circulatory system. He explains how valves, blood cells, and the circulatory system operate together to pump up in our hearts.Bill Nye's scientific lecture about our blood and circulatory system. He explains how valves, blood cells, and the circulatory system operate together to pump up in our hearts.