Video narration
Where does a plant get its food? At home, cooking takes ingredients and energy to make a meal. A recipe needs ingredients, and heat helps change them into something new; heat itself isn't the meal. A leaf has its own tiny kitchen. It draws water up from the roots and takes carbon dioxide from the air, then uses light energy to make sugar. That process is called photosynthesis: using light to turn those ingredients into sugar. But sunlight isn't the plant's food. It's the energy that helps the leaf transform its ingredients. The soil doesn't hand the plant ready-made sugar; the leaf's kitchen makes it from water and carbon dioxide. As sugar is made, oxygen is released into the air. So where does the plant get its food? From its leaf's kitchen: light helps make sugar from water and carbon dioxide, while oxygen goes out into the air.