Tag: guided inquiry

Bath Bombs: An Inexpensive and Accessible Kinetics Experiment

In this fun and colorful experiment, students make their own bath bombs and investigate the effect of temperature on reaction rates. by Meaghan Cabassa and Beth L. Haas* J. Chem. Educ. 2020, 97, 6, 1629–1632 Abstract: Cosmetic chemistry is a prevalent part of everyday life, but there are very few undergraduate laboratories that explore this topic.…

Determining the Pressure inside an Unopened Carbonated Beverage

At home Hands-on Experiments

Students tackle the deceptively simple task of determining the pressure of carbon dioxide gas inside a sealed soft drink can. By Hans de Grys, Journal of Chemical Education 2007, 84, 7, 1117 Abstract Soft drinks provide a unique way to explore chemical principles. A challenging exercise for students is to determine the pressure of the carbon dioxide gas inside…

Exploring acid-base properties of household chemicals using a universal indicator

At home Hands-on Experiments

Overview Adapted from Scientific American and Connections Education In this colorful experiment, students extract red cabbage indicator (an anthocyanin) with isopropyl alcohol or water. Students then create a series of solutions of household chemicals and use their indicator and pH strips (or a pH probe, $19) to correlate pH to color change. Based on their results,…