Physics: Color

Students put colored beads under different colored light bulbs and tried to pick out the red, green, and blue beads. In addition to coming up with a measure for how easy it was to sort the beads, they kept track of which beads they tended to mistake for which color.

Chemistry: Lab Discussion

We spent some time discussing yesterday’s percent yield lab. Previously, we’ve only done problems where the mole ratio is a whole number, so I was a little worried doing a lab with a fractional ratio, but that worry was misplaced. I need to stay out of the trap of underestimating my students. There was also some good discussion about why the percent yield was not 100%.