General

Acid base chemistry is always a popular topic. The struggle with this topic is that there is always so much a teacher can demonstrate. Demonstrations are great but it is tough at the end of the year when students are tired and time is precious. I did a couple of these demonstrations that students seemed to enjoy. I like these demonst

The chemistry demonstration called the self-carving pumpkin¹ is a blast (no pun intended) to conduct around Halloween. To prepare this experiment, a jack-o-lantern face is carved into a pumpkin, but the eye, nose, and mouth pieces are saved. These pieces are then gently placed back into the holes in the pumpkin.

Co-Authored by James W. Webb and Otis Rothenberger Department of Chemistry, Illinois State University, Normal, IL

Co-Authored by Iain A. Smellie*, Iain L. J. Patterson*, Brian A. Chalmers* *University of St Andrews, School of Chemistry, North Haugh, St Andrews KY16 9ST, United Kingdom

This piece explains an activity that allows for the simple and accurate determination of the heat of vaporization, ΔH_vap,

by Dean J. Campbell* *Bradley University, Peoria, Illinois

The concept of Measurement and Significant Figures can induce discomfort.¹ This article and the associated resources take an empirical, logical approach to this important concept, which your students will understand, and dare I say, enjoy.

Can high school students truly drive their own lab experience? I’d say after enough time and exposure, they can. This is what led me to develop a version of the Carbonate Project to have students perform after the AP Exam. This experience requires students to do some research, execute previously performed lab techniques, and identify an u