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 ...

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 ...

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 ...

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 ...

Over billions of years, plants mastered the art of photosynthesis, but some took it a step further. While most crops like rice still rely on the older, less efficient C3 process, others like corn and ...

In order for trees to grow, they need to control their water balance meticulously. A study shows how trees react to drought -- and revises previous perceptions. In order for trees to grow, they need ...