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That is why we need to use wintergreen flavored candy. The problem is that these sparks are too small and dim to see. When you squeeze the lifesaver, the crystals of sugar in the candy produce tiny sparks of piezoelectricity.

If the pressure is strong enough, the crystal can produce a spark. The crystal will have a positive charge at one end and a negative charge at the other. When you put pressure on certain kinds of crystals, they become charged with electricity. Piezoelectricity is electricity produced by pressure. What is happening? The lifesaver contains sugar crystals, and sugar is piezoelectric. With a little experimentation, you will find out just how hard to squeeze to get the brightest flash of light. Once your eyes have adjusted, place a lifesaver between the ends of the pliers and then crush the lifesaver with one quick squeeze. If so, use a rolled up towel to block the light. As your eyes start to adjust, you may see light coming in under a door. Once it is nice and dark, wait for a few minutes, to let your eyes adjust to the darkness. You may want to do this at night, because even a little light will keep you from seeing what we are looking for. Turn out the lights and get the room as dark as you can. This will catch the bits of lifesaver when you break them, and save you some clean up time later. This could be a closet, or a room with no windows. a totally dark place to try your experiment.It MUST be fresh and it MUST be Wintergreen flavor. a FRESH package of Wintergreen Lifesavers.