American Chemical Society
Energy and Entropy of a Stretched Rubber Band
Stephen Perry invented and patented the modern rubber band in 1845. Young scientists put his discovery to work as they use rubber bands to observe entropy and enthalpy. They determine the change in free energy to figure out if it...
Teach Engineering
Wizardry and Chemistry
No need to go to Ollivanders to buy a magic wand. In the chemistry lab activity, young magicians mix chemicals to create combustible compounds. By applying these compounds to an iron wire, they create magic wands.
TeachEngineering
Teach Engineering: Wizardry and Chemistry
Students learn how common pop culture references (Harry Potter books) can relate to chemistry. While making and demonstrating their own low-intensity sparklers (muggle-versions of magic wands), students learn and come to appreciate the...