ChemEd X contributors offer their ideas and opinions on a broad spectrum of topics pertaining to chemical education.

Blogs at ChemEd X reflect the opinions of the contributors and are open to comments. Only selected contributors blog at ChemEd X. If you would like to blog regularly at ChemEd X, please use our Contribution form to request an invitation to do so from one of our editors.

by Karen Sorensen
Sun, 11/20/2022 - 14:10

Exploring science claims found on social media helps students practice applying the claim, evidence, reasoning framework.

Comments: 3
Recent activity: 8 months 1 week ago
by Joseph Lomax
Sat, 11/12/2022 - 22:28

Sometimes the obvious is the most difficult to see. Even after teaching for four decades, there is still something to learn from students. What did I recently learn? Check out my post. 

Recent activity: 10 months 3 weeks ago
by Philip Root
Sat, 11/12/2022 - 20:43

Find out how laboratory activities can be used as the starting point for scientific model development rather than as the endpoint, or verification, of concepts presented in lecture. This post deals with density.

Recent activity: 10 months 3 weeks ago
by Dean Campbell
Thu, 11/10/2022 - 16:45

Polystyrene foam sticks with a square or rectangular profile will not fit into a round target hole (e.g., the opening of a soda bottle) at room temperature. However, they do contract sufficiently in contact with liquid nitrogen to fit into the hole and produce a simple demonstration of Charles’s Law. Many other polymer foams do not shrink under these conditions, but still provide opportunities to discuss and explore their structure and chemistry.

Recent activity: 10 months 3 weeks ago
by Tom Kuntzleman
Mon, 10/17/2022 - 17:09

This Pumpkinator is a fantastic orange-to-blue-to-orange chemical reaction that will make a great addition to your Halloween-themed chemistry demonstrations.

Recent activity: 11 months 4 days ago
by Dean Campbell
Mon, 10/10/2022 - 09:00

The theme to the 2022 National Chemistry Week, observed October 16-22, is “Fabulous Fibers: The Chemistry of Fabrics”. A visit to Natural Fiber Welding, Inc. in Peoria, IL, revealed how that company is using ionic liquids to solvent weld cellulose fibers together to produce more durable yarn which can then be made into more durable fabric. The production method and “greenness” of the product is discussed, from the cellulose itself to the recycling of the solution used in the welding process. Macroscopic demonstrations of the fiber solvent welding process are also described. 

Comments: 1
Recent activity: 11 months 3 weeks ago
by Tom Kuntzleman
Tue, 09/20/2022 - 09:42

Learn a bit about the chemical reactions that occur during a lightning strike, and how you can demonstrate these reactions in your classroom.

Recent activity: 3 months 1 week ago
by Chad Husting
Fri, 09/09/2022 - 11:18

Use a simple experiment to get to know students, demonstrate experimental design and discuss classroom policies about cell phones.

Recent activity: 1 year 3 weeks ago
by Melanie Harvey
Tue, 09/06/2022 - 21:01

A variety of resources are available for chemistry faculty interested in incorporating lessons and activities around art and archeology. Find out what they are in this follow up post from the inaugural ChemEd X virtual Journal Club held April 2022.

Recent activity: 1 year 3 weeks ago
by Dean Campbell
Sat, 08/13/2022 - 10:20

Flash rocks were discussed in a previous post as stones made of quartz that produce light by triboluminescence when struck together. This post provides some description of their origins and tips on how to find them, making connections to some of their properties.

Recent activity: 1 year 1 month ago