INTRODUCTION 2 STREET BEATS Can you hear it It's your favorite band playing at a concert The music gets louder and louder the closer you get to the stage In the crowd everyone's dancing You can all feel the beat The low bass is pounding in your chest The stage lights switch from red to yellow and blue A spotlight follows the lead singer Flashing lights highlight You can feel a song's low bass notes in your body but not the higher notes That is because sound travels in waves The low notes have longer waves that move more slowly So you can feel them as they travel through body your
Sound and light waves make a concert loud and exciting the beat Their light travels in waves You don't feel the light waves but they help you see everything around you Ever wonder why low sounds make your body vibrate Or why a leaf is green Or even how bats can fly in the dark Scientists ask these kinds of questions as they study the world and wonder how it works They test their theories and come up with answers based on their evidence This is known as scientific inquiry What questions do you have about sound and light 5
