SciHawks

AP Chem - we discussed second electron affinity in terms of the typical factors of attraction (Zeff, OPEL's of electrons), and repulsion (degree of electron electron repulsion in the valence shell) BUT ALSO the repulsion of the negative one charged ANION against the incoming electron.
We then related the chemical periodicity of the elements to the behavior of specific elements in single replacement redox reactions: more reactive non-metal elements gain electrons from the anions of less reactive nonmetal elements in anionic single replacements; more reactive metal elements LOSE electrons to cations of less reactive metal elements in cationic single replacements.

Bio - we showed graphically the five factors that influence the rate of photosynthesis; these factors were either the reactants (carbon dioxide, water, photons/light energy) in photosynthesis, or factors (temperature and acidity/pH) that affect the photosynthetic enzymes or chlorophyll in photosynthesis.

We then sketched a typical plant/tree to track where the ingredients/reactants in photosynthesis get into the plant/tree.