Soda Bottle Trombone
Create your own version of a slide trombone in 3 simple steps and materials that you most likely have on hand at home. This is a quick and easy experiment in sound that will have kids tooting their own horns in minutes. Budding scientists will discover that the pitch of the sound that they create changes as they move the straw because they are lengthening the section of air in the straw. This mimics the manner in which a slide trombone functions.
How to Make It