This experiment looks at the science behind buzzing sounds by building homemade noisemakers:
Have you ever tried to make a whistle out of a blade of grass? Or spun around a wooden noisemaker? Making unique sound makers can be lots of fun—and demonstrate some cool science at the same time. This activity will have you buzzing like a bee—and is a perfect one for playing outdoors. Once you understand the basics of how this noisemaker works, you can make a few of different sizes, share them with your friends and form a band of buzzing bees.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.