The Chemistry students got a blank Periodic Table today and saw the really important part about it. It shows relationships between atoms and how and why the atoms react the way they do. You can find out about all of that stuff by seeing what happens to electrons in the outer most energy level. It's true.
The AP Biology completed the data collection for Part B of the Mitosis and Meiosis Lab which is pretty much just checking out prophase, metaphase, anaphase and telophase and counting them. That's it. And if you know how fast an onion root tip undergoes one turn of the cell cycle, you can tell how long each of those phases lasts.