American Institute of Physics
Dr. Gates and the Nature of the Universe
What do Russian nesting dolls have to do with physics? They make a great demonstration tool for explaining Dr. Sylvester James Gates, Jr.'s string theory to young scientists. A two-part lesson first introduces learners to Dr. Gates'...
Curated OER
Properties of Materials - Part B
Students describe the history of materials. They use the kinetic (particle) theory to explain changes of state in matter and trace the flow of heat during changes of state and chemical changes.