SciHawks

AP Chem - we analyzed Lewis acids and bases; Lewis acids are typically Boron compounds (electron-"deficient species") or high-charge density metal ligand complexes; we saw that it is actually the water ligand of the metal ligand complex that reacts with adjacent water molecules, as an H+ from the water ligand accepts an electron pair from the adjacent water's oxygen, thus forming hydronium ion in solution, thus making the solution acidic, lowering the pH.
We also showed four ways to make a buffer solution that will effectively neutralize significant quantities of added acid or base without a subsequently significant change in pH.

Bio - began the unit on sexual reproduction. Earlier in the course, we discussed various forms of asexual reproduction, chiefly involving some type of mitosis and cytokinesis.
We discussed the evolutionary advantages of sexually reproducing species (variety/diversity improves probability of the species survival in a changing environment, as well as some disadvantages (energy required to find a mate, and actually mate).