Fri. Nov 15, 2013
Chemistry I – We finalized the analysis of our gas pressure vs. temperature lab. Because we took the data using Celsius temperature the data was linear, but not direct. We fixed that by using the Kelvin temperature scale instead. Groups then worked on putting together one big summary whiteboard that includes graphical, verbal, diagram, and mathematical models of all three pressure experiments.
Physics 1 – We used a variation of the the popular bowling ball and broom lab to explore balanced and unbalanced forces. I found this alternative from the St. Louis Area Physics Teachers. Each student got one practice trial, and one timed trial to make the bowling ball move through the course. During the timed run any time the ball fit the plastic of the broom, a cone, or other obstacle a 0.5 second penalty was assessed. There was a lot of fun, competition and intensity during the time trials.
Chemistry 2 – We looked at how to analyze and get meaning out of a pH titration graph. Once students understood how to analyze the graph and find the one volume measurement they are interested in they were assigned to write a formal lab report for the lab. This is the first and only time I have a chemistry class type up a formal report.