What is photosynthesis?

Plants make food because sun warms leaves. Leaves drink water from roots. They use air too. Then plants grow tall and green.

Photosynthesis is how plants make their own food. Leaves catch sunshine, take in air, and use water from the roots. The plant uses these to make sugar, which helps it grow. It is like using blocks to build a tower, but the plant builds with sunshine, air, and water.

Photosynthesis is how plants make their own food. Leaves take in sunlight, water from the soil, and a gas in the air called carbon dioxide. Inside the leaf, a green stuff called chlorophyll catches the sunlight. The plant uses that energy to turn water and carbon dioxide into sugar for food. It also lets out oxygen, the gas we breathe. Fun fact: most of the oxygen on Earth comes from tiny ocean plants called algae.