Could electrons really be as small as the numbers suggest? This is the hurdle for the initial study of electrical properties of elements. Learners view a video to follow the history of the science that led to the discovery of the parts...

Better batteries may be just around the corner. Viewers of an engaging video first learn how batteries work and how charging batteries uses a reverse process. They then learn why it is difficult to make better batteries.

Your cell phone contains many elements you may not have even heard of! Explore the science of the smartphone with a lesson from the Reactions playlist. The instructor explains the location and purpose of the many different elements that...