I'll try not to get too complicated in answering such a complex question. If a student wants to go into science, they should not forgo hands-on thinking (is that an oxy.m - not). The tenets of established science can and should be questioned. We all must make science work for us; it should not be an abstract field. Science is an activity experience. for that alone, I am not convinced you can include it online - you must be there, doing it, observing and thinking in the presence with sciences. You may need to memorize formulas but you need to be in there with whats going on. Charlotte Wilson