While ice is usually referred to as ice cubes, indeed, most are not really cubes at all. In this 5E learning-cycle lesson, students will investigate different shapes of ice and how shape affects the speed of melting and the rate of cooling a glass of water. Students will compare three different shapes of ice with the same volume but different…

Wind is reemerging as a clean and reliable source of energy--primarily for the production of electricity. This article discusses how to create a pinwheel to explore wind power. It presents a 5E learning-cycle lesson in which students construct a simple pinwheel-type windmill to test the power generated by different designs. Students compare three-…

In this article, the author describes several activities in personal care chemistry that provide middle school girls with opportunities to learn firsthand about science and engineering technology. These activities--the preparation of lip balm and hand lotion--are fun, easy to do, and make use of relatively inexpensive, safe, environmentally…