Bill Nye the Science Guy
Season 2 Episode 3 - Blood & Circulation
It's time for a heart-to-heart talk about blood and circulation with Bill Nye the Science Guy. Your blood is your bud. Without blood, your skin would dry up and fall off, your internal organs would die, and your brain would be kaput. Blood gives every cell in your body the food and oxygen it needs to survive. Blood also cleans up after our cells by carrying away waste. Blood even protects your body from disease. What more could you ask from a friend? Blood patrols your entire body. Blood is pushed around by a powerful pump called the heart. Every time your heart lub-dubs, blood is propelled through tubes called arteries, capillaries, and veins. Your heat pushes your blood in a complete loop around your body about 2,000 times every day. Your heart is a muscle, and, like all muscles, it can get stronger. A healthy heart needs exercise to stay strong. An average heart pumps about 70 times a minute, but a healthy, well-exercised heart pumps 50 or 60 times a minute. Heal
Episodes in Season 2
Magnetism
26 min
Wind
26 min
Blood & Circulation
26 min
Chemical Reactions
26 min
Static Electricity
26 min
Food Web
26 min
Light Optics
26 min
Bones & Muscles
26 min
Oceanography
26 min
Heat
26 min
Insects
26 min
Balance
26 min
The Sun
26 min
Brain
26 min
Forests
26 min
Communication
26 min
Momentum
26 min
Reptiles
26 min
Atmosphere
26 min
Respiration
26 min
