Science lessons

This site is developed as well for use of students of middle school and high school as for curious who wish to understand physical sciences. This website can also be useful to those who want to assisttheir children with homework and understand their lessons and to those who review to revise for an examination. Each subject includes both easily understood notions and complex notions in order to enable an apprenticeship that is progressive and suited for all. All lessons are are available for free and cover notions of chemistry (science that describes matter and explains its transformations), mechanics (science of motions and interactions), optics (science of light) or electricity (science that explains electrical circuits and electrical phenomena).