The third experiment. (This is a video taken by time-lapse shooting of the iPad.) The right side of the clock is for measurement and the left side is for observation. From the right, natural water, baking soda, copper, soap, and bleach.The third experiment. (This is a video taken by time-lapse shooting of the iPad.) The right side of the clock is for measurement and the left side is for observation. From the right, natural water, baking soda, copper, soap, and bleach.
