🌱 Ecology Curriculum

Sound is invisible, but you can feel it. Everything that makes a sound is vibrating. A vibration is just a very, very fast wobble or shake. When something vibrates (like a guitar string), it bumps into the air particles next to it. These particles bump into the particles next to them, and so on, creating an invisible wave of vibrations that travels all the way to your eardrum. Your eardrum vibrates... and your brain says, "I hear a sound!"