At Chem Ed 2015, a teacher from Texas showed me this quick and dirty way to do a distillation that the kids can do. I forgot her name. "Lady from Texas", let me just say "thank you". If you are reading this, please shoot me an email and I will be more than happy to give you credit. It worked really well.
Most chemical educators will agree that exciting demonstrations are excellent motivators to create interest in science. They are also a way to create interest in the community, motivate the student-demonstrators, and perhaps to make a little money to support special activities of an ACS Chem Club. Chemical demonstration shows, organized around holidays or other special occasions have a long and honored history. Pacifica High School (Garden Grove, CA) took its inspiration from the lecture-demonstrations of Michael Faraday, given during the Christmas holidays of 1860-61. (The Chemical History of A Candle).
Build a propane gun for your students! Construction is inexpensive, easy, and the effects are spectacular.
The video displays a neat trick you can do for your students. What do you suppose is the secret behind this trick? Hint: >It has to do with chemistry!
View the semifinalist videos for the ChemEd 2015 "So You Think You Can Demo" contest.
Participate in our Unofficial Vote for your favorite!
The “Elephant Toothpaste” experiment is a very popular, albeit messy chemistry demonstration. To carry out this experiment, place a 250 mL graduated cylinder on something that you wouldn’t mind getting messy.
“So You Think You Can Demo” is a fun and educational contest sponsored by ChemEd committee members to allow chemical educators to have a platform to share their best hands-on science demonstrations. We encourage all ChemEd 2015 attendees to submit a video showing off your most creative, informative and interesting chemistry demo. The deadline for submission of a demo video is April 30th.
The juice from an orange peel causes a balloon to pop. When I first saw this effect I immediately thought to myself, “what is the chemistry involved in this experiment?” After quickly searching the web, I found several claims that a compound in orange peels called limonene (Figure 1) is responsible for this effect. Limonene is a hydrocarbon, which means that molecules of limonene are composed of only carbon and hydrogen atoms. Limonene is responsible for the wonderful smell of oranges, and it is a liquid at room temperature.