Oxygen: Where Does it Come From?
About this episode
This episode explores the origins of oxygen and the air we breathe, focusing on trees and phytoplankton.
Tonight, we go looking for something invisible. Join me for a calm, awe-filled journey to two places, the trees just outside your door and the far side of the open ocean, as we answer one of the biggest questions a curious child ever asks: where does the air we breathe actually come from? No loud sound effects. No fictional drama. Just the steady wonder of chemistry, the ocean, and the living things that quietly fill the sky with air. WHAT YOUR CHILD WILL LEARN:→ The Breath That Was Once Water: Where does the oxygen in your lungs really come from? Not from the air, the way most people think, but from water, pulled apart by sunlight inside a single green leaf.→ Too Small to See, Big Enough to See from Space: The real makers of more than half the world's air drift in the open ocean. They are called phytoplankton, and a single one is invisible, yet together there are so many you can see their color from orbit.→ When the Sky Had No Air: There was a time on Earth when no one could have taken a single breath. We tell the story of the first tiny living things that slowly filled an empty sky, and never stopped.→ The Breath You Share with the Whole World: The air doesn't stay where it's…
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