YouTube Body Percussion video: Try Everything STEM Activity: Water Xylophone You can use the water xylophone to teach kids about pitch. Fill 6 mason jars or glasses with different levels of water. Each should have slightly more water than the previous one. We added food coloring for fun. ...
A quick fine tip sharpie mark to the topside of the cotter pin let me know where to clip it and some Roman numerals to the underside to keep them straight made sure I could easily pick up where I left off later. As the picture captions below suggest, I used Roman rather than Arabic ...