Why Do Some Desert Plants Open Their Pores Only at Night?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do some desert plants open their pores only at night?

The Big Idea

Some desert plants open their pores only at night, so they lose less water! Open pores let in air, but they also let water escape. At night, the air is cooler and damper, so it is a better time to open up.

Tiny Pores

Step one: tiny pores. Plants take in air through tiny pores in their skin. But open pores also let water slip out, especially when the air is hot and dry.

Open at Night

Step two: open at night. Cacti and agaves open their pores in the cool night, when little water escapes. They store the air they need inside their bodies.

Cook by Day

Step three: make food by day. In the daytime, the pores stay shut while the plant uses sunlight and its stored air to make food. Scientists call this special method CAM.

A Closer Look

Let's take a closer look! At night, it is cool and damp. The pores open and let in air. By day, the Sun shines hot and bright. The pores shut tight, and the plant makes its food.

Quick Facts

Quick facts! The special way of making food is called CAM. Many cacti, agaves, and even pineapples use it. It can save a plant a lot of water, which is very important in a desert. Stay cool in the day, and never walk in heat alone.

Think Like a Scientist

Now, think like a scientist! Think of a window. You open it when it is cool, and shut it when it is hot. How is that like the plants' trick? Share your idea with a grown-up! Share what you discover with a grown-up.

Outro

Night pores save water. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!