AP Chemistry: Today we started our first lab: Determination of the Empirical Formula of a Copper Oxide. We will continue this lab tomorrow in class. Also, tomorrow morning is our first help session from 7:10-7:40.
Physics: We worked on making graphs of our first lab. This also served as introduction to LoggerPro as our means of analyzing lab data. Students should have the data from all 3 labs ready for tomorrow. We will analyze results, print graphs, and make WB tomorrow.
Chemistry: We looked at the results of our Mass and Change lab, which resulted in the discovery of the Law of Conservation of Mass. This is a principle law of Chemistry, and was a major breakthrough in its course of study. It notes that for a closed system that, the amount of matter present before and after a change (physical or chemical) is the same. I assigned WS#1 in class, and it's due at the start of the hour tomorrow.
Physical Science: We began the second part of Unit 1, by beginning a measurement activity. Students have had to take measurements in other classes, but in Physical Science we introduce it in a more complex manner. Measurement devices have a certain level of precision. Precision means that we are able to make several measurements of the same object, with the same device, and get the same or similar results. In years past, students have not had to deal with the precision or uncertainty of their measurements, which is why we begin anew.
We will also look at the importance of measurement standards, how to convert between units of measure, and how to identify the level of uncertainty in different measuring devices.
