Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry. These new elements have high atomic ...

One day about 20 years ago, Tom Noffsinger experienced every woodworker's worst nightmare: One final cut on his table saw before knocking off for the day turned into a trip to the emergency room. It ...

Two women hold tweezers and meticulously place small balls into small dents in a wooden board. American Chemical Society members volunteer time to place small balls into small dents to help finish a ...

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 ...