How can a worm sense the world without eyes?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How can a worm sense the world without eyes?

The Big Idea

Worms have no eyes at all. But they still know where light is! Their skin does the sensing.

Light Sensing

Step one: Light Sensing. Worms have no eyes, but their skin has special cells that sense light. So they can tell dark from bright.

Feeling Things

Step two: Feeling Things. Worms also feel vibrations, touch, and chemicals. These senses help them find food and mates.

Staying Safe

Step three: Staying Safe. A worm's skin must stay damp. So it moves away from light and heat, and avoids dry, sunny spots.

A Closer Look

Let's take a closer look! It senses light with its skin. It feels touch. It notices vibrations in the soil. It senses chemicals from food.

Quick Facts

Quick facts! A worm is most sensitive to light at its head end. Worms often come to the surface on rainy days. Worms are most active in the dark. Damp skin helps worms breathe.

Think Like a Scientist

Now, think like a scientist! Find a worm on damp soil with a grown-up. Gently shine a flashlight near it, not right on it. Watch which way it moves. Then let it be, back in the soil. Why do you think it moved that way?

Outro

A worm senses the world without eyes by using special skin cells that feel light, plus touch, vibrations, and chemicals. It moves away from light and heat to keep its skin damp. Science is amazing! Keep wondering and keep exploring! Share what you learned with someone at home, and see what they think! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!