Trees need sunlight for the same reason you need food. The energy from the Sun's rays is a crucial ingredient in how plants make their own food that helps them power all their cells. Since trees don't ...

Plants have small pores on the underside of their leaves, known as stomata. When the sun rises, these pores open and the plants absorb carbon dioxide (CO 2) from the atmosphere, which they need, in ...

When I was little, my family measured how tall I was. They marked it on the wall. It was amazing to see how much I grew. I talked about how plants grow with Helmut Kirchhoff. He’s a scientist at ...

Photosynthesis is the starting point for almost every food chain, sustaining most life on Earth. You would be forgiven, then, for thinking nature has perfected the art of turning sunlight into sugar.

Plants use sunlight to convert water and carbon dioxide into energy-rich sugars and oxygen in various ways (photosynthesis). Drought is a major challenge in this process. A research team led by ...

Unlike us, plants don't need pantries full of food to stay alive; the Sun is their pantry. But, like us, they require fairly regular sustenance, which they create via photosynthesis. This seemingly ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...