A new iPad app -- developed by scientists at New York University-Polytechnic Institute -- is aimed at simplifying the process of learning chemistry and is being used by a group of students at an all-girls public school in Brooklyn, N.Y. "Lewis Dots" is a free app that allows the students to create and manipulate chemical bonds using the devices' touch screen. "Instead of having it as abstract objects in a textbook or on the blackboard, you have something you can touch with and play with and own it and make," professor Jin Kim Montclare said.

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