Spring (device)

Imagine a bouncy ball that you love to play with. When you throw it on the ground, it bounces back up. The reason it does that is because it has energy stored inside of it.

Now, imagine a long, skinny piece of metal that is all coiled up. This is called a spring. Just like the bouncy ball, the spring also stores energy inside of it. When you push on one end, it tries to bounce back to its original shape.

Springs are used in lots of things you see every day. They might be in your toys, your bed, or even in your car! When you jump on your bed, the springs help it to bounce back up, just like the bouncy ball.

Sometimes, when something is too heavy or too strong for you to lift on your own, a spring might be used to help you. For example, if you push down on the lid of a trash can, the spring will help you lift it back up again after you throw away your garbage.

So, in summary, a spring is like a bouncy metal stick that stores energy and helps things bounce back up.