Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

A well-established technique, acid-base titration is an analytical method used to determine the concentration of an unknown acid or base. In practice, it involves adding a solution of known strength ...

William Krause, 17, of Pasadena, demonstrated how he and others from a nonprofit student group unlock their inner science nerd for the benefit of homeless children. He described the workings of a ...