hello everyone! I am going to tell you about sound experiments
experiment 1: we take a cup put plastic wrap put the wrap over the cup and put the string around the cup with the wrap pour the salt on the top of the wrap and then take a tuning fork hit it on a solid and then put it near the salt.
take a cup and fill with water and get a tuning fork hit against solid and put in water
Watch my video to see what happened…