Rohit+J13

Rohit J Cary Academy 2012-2013
 * TESTING MOOD RINGS TO SEE IF AFFECTED BY HOTPLATES **

The purpose of the first experiment was to determine if mood rings could be affected by hotplates. It was hypothesized that they would be affected by the hotplates because of the fact that they are made from liquid crystals which have been shown to be extremely sensitive to heat. To test this, an experiment was conducted using mood rings, hotplates, and a pair of tongs, safety goggles, and an outlet on the wall. First the safety goggles were put on to protect the eyes and face from the heat. Then the hotplate was turned on setting one and mood rings were put on it with the use of tongs to prevent getting burned. Then they were each left on for about thirty seconds and then taken off for observation with the tongs. After that they were observed and the data was recorded and it turned out that the hotplates were able to affect the mood rings, changing the color every time. In the second experiment the purpose was to find which material was the best conductor. The aluminum was the best, then oak, and then acrylic. The purpose of the third experiment was to see if mood rings could be affected by hand warmers and it turned out they could. Finally in the last experiment the purpose was to find out what color mood rings change to at different temperatures and six points were found out for that.
 * ABSTRACT **

**Experimental Improvements and Future Experiments** Something that could be improved would be to put the mood rings in water while doing it so they can’t turn black and stay that way for very long. Another thing that could have been improved would be to use gloves so that if by accident you touched the hotplate you wouldn't burn yourself on the hotplate. Future experiments could include testing cold things on mood rings and seeing how they react like ice packs. Another could include having people do activities and then comparing the mood ring then to when they are calm and relaxed. Another way to expand would be to try different heat sources and see how they are affected by that As seen there are many possibilities and ways to expand upon mood rings.

