![]() Warning: The springs should be prepared beforehand, and prepared with caution. Please note: Be very careful with the springs used in this product. Using the instructions from Easy, confirmed working Thunder or Spring Drum **this one REALLY works!!** by Josephine1 on, we helped the kids make thunder tubes, an end product that was extremely popular. We used Homemade Harmonica by JTapp09 on, Make Some Noise! on and How to Make a Harmoni-Kazoo out of Popsicle Sticks and Rubber Bands by Phil Lonsdale on as references for this activity. They kids loved the instrument but had difficulty maniupulating the rubberbands. We made harmonicas out of popsicle sticks and rubber bands. If we offered this activity again, we would tell the kids what the song was beforehand to help them as they played the palm pipes. Kids couldn’t guess the tune and had difficulty following when they were suppose to use their pipe. While the kids loved using the palm pipes, the demonstration itself was not very successful. We purchased palm pipes (essentially mini-boomwhackers) and tried to have the kids play a tune as we pointed to them. It was interesting to see the sound waves in action, and the kids were amazed. We then followed that with the Waves of Sound experiment from ’s Science of Sound, using a plastic covered bowl and salt. Using the Slinky Waves activity from Seark Science, we demonstrated sound waves. ![]() Chladni Plates on Americanhistory.si.edu provides an excellent explanation of the Chladni Effect. Watch either Resonance Experiment! (Full Version – With Tones) or Amazing Resonance Experiment!, demonstrating the “Chladni Effect.” Show only a small portion of the video.If the spring breaks loose from the vise (or partner’s hand) that holds it, it could snap back and cause injury. THe spring needs to be stretched out very long, held for over a minute in that position, and then cut in half. WARNING: Use precaution, and prepare the spring while wearing both goggles and gloves. Prepare the springs for the thunder tubes, per the instructions on Easy, confirmed working Thunder or Spring Drum **this one REALLY works!!** by Josephine1 on. Metal Bowl and Spoon (or something similar to make noise with)įor Advanced Preparation, you will need the following supplies: Springs (recommend specs are 0.187″ OD, 0.020 wire diameter, 20″ length and type 302 stainless, per experiment source) Oatmeal Containers with cardboard bottoms Brief Description: How does sound travel? Watch noise move salt, make your own harmonica, and more.
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