All About Sound Hands-On Activity Kit by RAFT and the Exploratorium
What's all the buzz about?
Give this little noisemaker a whirl to learn about the effects of air passing over a taut rubber band. As it vibrates, the rubber band can generate a surprising range of deep rumbling tones. How can the pitch be changed? Experiment to find the answers!
Vibrations in the air create sound!
People of all ages love the razzy, jazzy Kazoo sounds that come from this fun-to-make and easy-to-play musical instrument. Vibration is the key to making sounds and this harmonica uses a rubber band trapped between tongue depressors (Jumbo craft sticks). Changing the length of the rubber band will change the sound. How to change a rubber band’s length? Build the tongue depressor harmonica to learn how.
A “Note”worthy Sound Activity
Build a Glove-a-Phone to discover how a plastic glove, straw and tube can be combined to make a "musical" instrument. Once you learn the proper technique, your Glove-a-Phone can be heard a surprisingly long way off! Use different size tubes and compare the sounds.
RAFT (Resource Area For Teaching) is an educational non-profit organization dedicated to inspiring and motivating young people through the power of hands-on learning. raft.net