Sound is made when something vibrates or shakes. Think of it like wiggling a string on a guitar or clapping your hands. These vibrations create sound waves, which are like invisible ripples that move through the air, water, or even solids.

When something vibrates, like a guitar string or your vocal cords when you talk, it makes the air particles around it move back and forth. These moving particles create sound waves that travel through the air as if they were little squeezes and stretches.

When you hear a sound, like someone speaking or music playing, what you’re actually hearing are those sound waves reaching your ears. They make your eardrums vibrate, and your brain turns those vibrations into the sounds you recognize.

But sound waves don’t just travel through the air. They can also move through other things, like solids and liquids. In solids, like a table or a wall, the vibrations can pass from one particle to another, making the sound travel through the solid material.

In liquids, like water, sound waves move by making the water particles vibrate. So if you splash your hand in water, the vibrations travel through the water, and you can even hear sounds underwater, although they may be different or quieter compared to in the air.

So, to sum it up: sound is created when something vibrates, and those vibrations make air, water, or solids vibrate too. The vibrations turn into sound waves that travel through the air, water, or solid materials, and when they reach our ears, we hear them as sound.