I just turned 16, am in 10th grade, and am new here. Long story short, my father teaches AP Biology, AP Chemistry, Anatomy&Physiology, Astronomy, AP Biology, and AP Physics, and is middle school teacher. He's best known for his successful passing rate. Well, I took his class for AP Bio in 7th, and Astronomy and AP Chem and AP Physics in 8th, but that was the only exposer I've ever had to that world of Science. Since then, my memory of the material has gotten foggy a bit. Well, I'm here at this site, because I want the knowlidge that I used to have back. Is there anyone that maybe might be able to help me climb my way back up the basics, to the point to where my knowlidge is back off the ground?