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!
Consumer Chemistry
Elevating the Coke and Mentos Experiment
Tom Kuntzleman | Mon, 04/07/2025 - 13:45
Ryan Johnson and I took a trip to the top of Pikes Peak to study the Coke and Mentos experiment. And we had a few surprises along the way...
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!
Using Phenomena in Testing
Nora Walsh | Wed, 10/25/2023 - 07:05
Nora Walsh reflects on her experience using phenomena in her chemistry courses and assessments for the first time.
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!
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!
Colourful Chemistry of Canning – Part 3
Iain Smellie | Thu, 04/13/2023 - 13:38
Part 3 includes further anthocyanin experiments to make a connection between the food we eat and the chemical principles that are employed to ensure that canned foodstuffs can be preserved properly. These recent studies have focused on the reaction of tinplate cans with iodine.
Making Natural Acid Base Indicators
Ariel Serkin | Wed, 04/05/2023 - 10:22
Ariel Serkin shares an activity she has explored using natural acid base indicators with her food chemistry elective students.
Laser-Cutting CDs into Snowflakes
Dean Campbell | Wed, 03/08/2023 - 15:57
Laser cutters can be used to cut and engrave a variety of thin materials. Compact discs, composed of layers of polycarbonate plastic and aluminum metal, were explored for their ability to be shaped with a laser cutter. The laser can successfully cut and engrave the compact discs into the shape of snowflake. However, each disc must first be coated with a material like glue in order to protect the plastic from discoloration and the byproducts from cutting the plastic that can accumulate on the disc surface.