The Floating Soap Bubble
Tom Kuntzleman | Mon, 08/21/2023 - 09:03
The floating soap bubble is an impressive experiment that is surprisingly easy to carry out.
Demonstrations
Elmer's Glue Isn't Just for Making Slime: Simple Chemical Demonstrations with Elmer's Glue
Josh Kenney | Sat, 08/19/2023 - 09:13
Josh Kenney shares three simple and inexpensive demonstrations using Elmer’s glue.
Colourful Chemistry of Canning – Part 4
Iain Smellie | Fri, 08/18/2023 - 09:45
Part 4 of Colourful Chemistry of Canning explores how to make gold in an old tin can!
Chemical Activities Involving Reversible Thermochromic Pigments
Dean Campbell | Wed, 08/16/2023 - 07:17
The color of a thermochromic system depends on its temperature. The colors of leuco dye-based systems can also be influenced by adding acids or bases to the thermochromic reactions. These can be used to create colorful demonstrations of acid-base chemistry. Thermochromism found in color changing cups can also be used to visualize heat flow, and therefore thermodynamic principles, associated with stretching and contracting elastomers.
Not Playing with a Full Deck: Ideas For Electron-Counting Chemical Card Games
Dean Campbell | Fri, 08/04/2023 - 14:00
Ordinary playing cards can be used in games where the cards model valence electrons in atoms. These games could provide players with a fun and active way to practice counting valence electrons in simple chemical structures.
How Do Color Changing Marshmallows Work?
Tom Kuntzleman | Wed, 07/19/2023 - 12:10
With a little chemical investigation, you can figure out how Jet-Puffed's new color changing marshmallows work!
Seashell Chemistry
Tom Kuntzleman | Thu, 06/01/2023 - 14:15
Placing dry ice in limewater is a great demonstration to accompany discussions on a variety of chemical topics, including the impact of ocean acidification on marine organisms that depend upon the formation of CaCO3.
Candy and Car Exhaust with Acid Base Indicators
Chad Husting | Thu, 06/01/2023 - 09:16
The candy "Toxic Waste" and "Pop Rocks" are fun ways to show changes in acid base indicators. There is also an easy way to test car exhaust with an indicator.
A Demo A Day III: Demonstrations and Props Used in My General Chemistry II Classes
Dean Campbell | Sun, 05/21/2023 - 10:50
Dean Campbell tries to use at least one demo for every class to illustrate concepts described in his chemistry courses. In this post, he includes short descriptions of the demonstrations and props he has used while teaching his collegiate General Chemistry II courses.
The Self-Carving Pumpkin: It's Not Just for Halloween!
Tom Kuntzleman | Tue, 05/02/2023 - 18:48
Learn the chemistry behind the reaction between calcium carbide and water...melon...?!