Have you ever seen the liquid nitrogen cloud? Do you wonder how the cloud forms when hot water is thrown onto liquid nitrogen? This post explores the liquid nitrogen cloud and possible explanations for its formation.
After just returning from Chem Ed 2019 in Naperville, I was planning on writing a blog about the best ideas and take aways. Indeed there were many amazing and creative ideas shared. But a guy named Mike captured more attention from me than all of those.
Chemiluminescence demonstrations that use peroxyoxalate “glowstick” systems are very popular in a variety of lecture demonstrations and classroom activities. These reactions are very eye catching and easy to do; however, until recently, the range of oxalate diesters available has been limited. In this article we present a modification of the published procedures for the preparation of multigram quantities of oxalate diesters derived from vanillin and methyl salicylate. The modified protocol allows a common procedure to be followed to access both compounds efficiently.
Hello, and welcome back to my second blog about chemistry education in the tri-border region of California, Arizona, and Mexico. In my last article I described the area and students who attend the two institutions in Yuma, AZ- Arizona Western College (AWC) and Northern Arizona University-Yuma (NAU). In this second post I will talk briefly about my experiences teaching an upper-division biochemistry course. I presume that what I observe in my classes is not much different than what you observe in your classes.
The beginning of the school year is almost here.
The American Chemical Society's Committee on Chemical Safety has reached out once again asking that the larger community share the warning about using the Rainbow Demonstration. They want to spread the word about the dangers of the Rainbow Flame Demonstration so no further injuries occur.
Do you have a unique way that you partner with your students, other faculty, universities, businesses, local high schools, surrounding community, etc. to achieve student success? Are you using innovative approaches inside and/or outside of the classroom? We want you to come share your ideas about what you are doing and your successes! And high school chemistry faculty are welcome and registration for high school chemistry faculty is FREE!
Catalyzing Student Learning
The July 2019 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: glowmatography; examining secondary chemistry teaching; useful teaching models and tools; making science accessible; teaching kinetics; computer-based learning; explorations using x-rays; polymer chemistry laboratories; using batteries to teach; analytical chemistry; investigating scale literacy skills; printing the archives: cyanotype.