Here I have included videos, interactives, games and other websites to supplement Apologia's physical science course. Note: I am using the CD-ROM course and not the textbook. I have posted the list in chronological order of the lessons on the CD.
The Composition of Water:
The Composition of Water 2:
Types of Experimental Errors [New Mexico State University]
Chemical Formulas [School for Champions]
Water's Polarity 2: