HyperPhysics

The HyperPhysics website is a rather intriguing site where visitors can examine thematic segments in order to learn about dozens of physics-related concepts, such as atomic mass units, Avogadro's number, and acceleration.Hosted by the Department of Physics and Astronomy at Georgia State University, the site offers visitors the ability to join a live study group in order to share information and problems related to physics. Visitors can also use the list on the right-side of the page to look for specific topics of note. Clicking on each of these topics will bring up a definition of each term or topic, complete with graphs, diagrams, and in some instances videos. People with a sense of whimsy and fun will appreciate the "crushing Coke can" video as it is illustrative and edifying.
http://hyperphysics.phy-astr.gsu.edu/hbase/HFrame.html

From The Scout Report, Copyright Internet Scout 1994-2013.https://www.scout.wisc.edu/

Global Warming Science: MIT OpenCourseWare

Many of our readers will no doubt already be familiar with MIT's excellent OpenCourseWare (OCW), which offers free college-level curricula online to the public. The OpenCourseWare site is well worth a browse, as it offers courses on a variety of useful and engaging subjects such as business, health and medicine, mathematics, fine arts and science. This particular course, which was originally offered to undergraduate students in the spring of 2012, looks at the science behind global warming. Content includes lecture notes, assignments and student projects. The content could be used as a springboard for instructors teaching similar classes, or may prove useful to curious individuals looking to learn more about this timely and important topic. 

http://ocw.mit.edu/courses/earth-atmospheric-and-planetary-sciences/12-340-global-warming-science-spring-2012/index.htm 

From The Scout Report, Copyright Internet Scout 1994-2013. https://www.scout.wisc.edu/