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Polyacrylate experiment
Our team testes to see if water temperature affects the rate of growth in polyacrylate crystals, which are little orbs that appear to be plastic but when you put them in water they absorb the water and grow into squishy balls. We put one cup of four balls with 20ml of water in it under a heat lamp, another cup in a refrigerator, and another in a room temperature area. What we found out was the colder the water, the more water was absorbed. We measured the size of the balls and the amount of water left after 24 hours and the cold crystals were bigger in size and had less water left than the warm and hot water. Thing that could've caused errors in our results were spilling water, breaking the crystals, mixing them up, or freezing the water. We observed that the colder the water, the bigger the balls. I understand that when water is warmer, the molecules move around faster, and when it's cold, they move slower. But I wanna know if that had anything to do with how much water was absorbed.
Article posted November 4, 2011 at 12:24 PM •
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