Ms. Barker's Chemistry & Biology Channel

I have been teaching high school in Virginia for over 20 years and have adjuncted at local colleges for several semesters. There are lots of videos I've posted here over the years for my students, but my more recent videos are focused on AP Chemistry and AP Biology. I've been teaching AP Chem for years, but I'm new (year three) to AP Bio. If you aren't one of my students, I hope they are helpful. The videos are based on Zumdahl's Chemistry and Campbell's Biology. #apchem #apbio #sciencerules