The Density Bottle is Red, the Density Bottle is Blue...
Tom Kuntzleman | Fri, 05/30/2025 - 10:10
You're going to love this new color variation on the Density Bottle experiment!
Video demonstration
Glacier-Related Demonstrations for Chemistry Classrooms
Dean Campbell | Thu, 04/10/2025 - 13:45
Short descriptions of demonstrations that can be connected to glaciers. Many of these examples are suitable for use in high school and collegiate General Chemistry courses and other courses such as Environmental Chemistry.
Picture Perfect Chemistry
Tom Kuntzleman | Sat, 10/19/2024 - 12:17
A Picture-Perfect activity for National Chemistry Week 2024!
The Chemistry of Water Reveal Coloring Books
Tom Kuntzleman | Tue, 07/16/2024 - 07:01
How do Melissa & Doug’s “Water WOW!” Water Reveal coloring books work? Let's do some experiments to find out!
The Chemistry of Pharaoh's Serpent with Calcium Gluconate
Tom Kuntzleman | Wed, 02/28/2024 - 13:59
Pharaoh's serpent is the name of a very interesting chemical reaction that produces a snake-like foam. Unfortunately, it requires the use of a toxic mercury compound. Explore this very similar reaction that can be achieved quite simply by using fuel tablets and calcium gluconate tablets and learn a lot about the chemistry that is involved!
Ice Clouds 2.0
Tom Kuntzleman | Tue, 01/16/2024 - 15:12
What is some of the chemistry involved in the formation of ice clouds when boiling water is thrown into icy air?
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...?!
Some chemistry related to the Ohio Train Derailment
Tom Kuntzleman | Tue, 02/28/2023 - 12:49
Diffusion of HCl(g) from concentrated solutions of HCl can be used to illustrate some chemistry related to the train accident in Ohio.
Chemistry and the Titanic
Tom Kuntzleman | Wed, 01/04/2023 - 09:56
Some metals and metal alloys undergo a transition to brittleness at cold temperature. This phenomenon likely contributed to the demise of the Titanic.
The Chemistry of Lightning
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.