What are photoautotrophs?

Photoautotrophs are living things that make their own food using light and carbon dioxide, just like a plant makes sugar from sunlight and air.

Imagine you're playing in the park on a sunny day, and you have a magic lunchbox. Instead of bringing snacks, your lunchbox uses the sunlight to turn air into a delicious sandwich. That’s what photoautotrophs do, they use light energy to make their own food from the air and water.

Think of photoautotrophs like little chefs in the kitchen of life. They have a special tool called chlorophyll, which is like a green chef's hat that catches sunlight. When they catch the sun, they use it to cook up their own food from carbon dioxide (the same gas we breathe out) and water.

You probably see them every day! Plants in your garden are photoautotrophs, they take sunlight, air, and water to make food for themselves. Even algae in a pond or sea are photoautotrophs, working hard to turn sunlight into energy under the water.