Have you ever wondered where the cloud comes from when dry ice is placed in water? If you think the answer is “atmospheric water vapor”, be sure to read this post because experimental evidence suggests that this explanation is wrong.
Solution to Chemical Mystery #6 is presented. Also, concepts related to the chemical can crush demo are briefly discussed.
The chemistry of silver and the process in which silver becomes tarnished is explored. Take a new look at an old JCE Classroom Activity.
A few years ago, we launched a weather balloon during our summer science camp. The balloon reached an altitude of 30 km (100,000 ft)! Among other things, this project ended up being a great way to teach campers about the gas laws and how atmospheric pressure decreases with altitude.
Encouraging Meaningful Learning
The July 2015 issue of the Journal of Chemical Education is now available online to subscribers at http://pubs.acs.org/toc/jceda8/92/7. This issue includes articles on summer book recommendations; biochemistry; web-based learning; assessment; organic chemistry; physical chemistry; carbon footprint activities.
Chemists Celebrate Earth Day
The April 2015 issue of the Journal of Chemical Education is now available for subscribers at http://pubs.acs.org/toc/jceda8/92/4. This issue features articles on atmospheric and environmental chemistry. Also featured in this issue are: microfluidic devices; problem solving strategies; information literacy; kinetics & thermodynamics; investigations of gases and organic synthesis; outreach.
Sulfur is burned in a deflagrating spoon in a flask, forming sulfur dioxide in the synthesis reaction.