https://www.youtube.com/watch?v=-YgMJYSTtqc&feature=youtu.be
After playing with the connection between the arduino and the piezo sensor, along with an amplifier, I was able to produce amplified sound from vibrations picked up by the sensor. A plastic sheet placed over the speaker, seen above, allowed a small amount of water to receive these subsequent vibrations and translate them into various wave patterns. Using the arduino Tone code [posted below] along with the ‘pitches.h’ library, I was able to adjust the frequency of the vibration from the speaker and see the different reactions with the water display.
LA301L 2014 Studio 