Video narration
How can a plant make food if it never sits down to eat? Think of a leaf as a tiny kitchen. Sunlight is not the food; it is the energy that powers the recipe. The ingredients arrive from two places: roots pull water from the soil, while leaves take in carbon dioxide from the air. Inside the leaf, light energy helps combine and rearrange those ingredients. The result is glucose, a sugar the plant uses as food for growth and energy, or stores for later. Oxygen is released as the leftover byproduct and enters the air. That whole recipe is called photosynthesis: a plant's solar-powered kitchen turns water and carbon dioxide into usable glucose, with oxygen released along the way. So how does a plant make food without eating? It cooks its own, using sunlight for energy and air and water for ingredients.