How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE.
Just after World War II, nuclear scientists turned their attention from fission to fusion. This video segment adapted from AMERICAN EXPERIENCE looks at the beginnings of thermonuclear power generation.
Learn how scientists regulate a nuclear reactor in this animation-enhanced essay from the FRONTLINE Web site.
This video segment adapted from A Science Odyssey looks at the invention of nylon.
In this interactive activity from ChemThink, learn how ionic bonds are formed and how an ionic bond structure is represented by its formula.
In this video segment adapted from NOVA scienceNOW, follow scientists in their quest to understand how stable elements are made and how to create the elusive element 114.
This video segment adapted from Discovering Women profiles Fermilab physicist and Harvard professor Melissa Franklin.
In this video adapted from NOVA scienceNOW, find out about the discovery of a new building material, the carbon nanotube, whose physical properties could theoretically enable the creation of a 22,000-mile elevator to space.
This video segment adapted from FRONTLINE looks at nuclear fission as an energy source that can be used to generate electricity.
In this interactive activity from ChemThink, examine the basic properties of matter at an atomic level and consider how various atoms affect the way a substance behaves.
This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.
In this video segment adapted from NOVA scienceNOW, learn about engineering innovations that could help detect a bridge's structural weaknesses before they become dangerous.
This video/animation shows that a molecule of water is made up of oxygen and hydrogen atoms. When oxygen and hydrogen atoms exist alone, their properties are different from the properties they have when they are chemically combined to form a water molecule.