This is a great (although a few years old) set of Video Courses on Chemistry and Physics.  I use these Videos as good Unit Overviews for the Regents Chemistry Course.  They should be done by students Every Unit at the Beginning of the unit so you can see all of what the Unit Contains.  I will award Bonus Credit for all Episodes You watch and Take Notes on.  

PhET is simply awesome.  Register as a student and get access to worksheets and activities.  If you are curious about many physical science phenomenon, then these simulations are for you!  I use selected ones for class assignments, but if you go exploring, you could really learn a thing or two about science, mathematics, you name it!

great animations that illustrate the phenomenon behind some chemical principles

Public Broadcasting is amazing.  Shows like NOVA and the featured stories that they cover are absolutely essential to understanding how Science is done.  I love the High Definition broadcasts, interesting stories and fascinating discoveries shows like NOVA can bring into my living room.  If you are looking for something awesome watch, start with NOVA.  

Do I smell some Extra Credit Brewing?  This is a Great website to help you start your search for an extra credit report on Elements and / or Scientists and philosophers.  Take a poke around in this timeline and you might just end up learning something about the History of Science and Philosophy.