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

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by Michael Jansen
Mon, 06/10/2024 - 08:23

A simple shift in wording can help boost student engagement and understanding. 

Recent activity: 4 days 10 hours ago
by Dean Campbell
Tue, 06/04/2024 - 11:00

When iron spheres at room temperature are added to liquid nitrogen, the nitrogen boils as heat is transferred in from the iron. The amount of liquid nitrogen boiled depends on the amount of heat transferred, which depends on the mass of the iron added. However, the rate at which liquid nitrogen boils depends on the surface area of the iron in contact with the liquid nitrogen. These phenomena can be studied with experiments which measure the mass lost by the boiling liquid nitrogen.

Recent activity: 1 week 3 days ago
by Melissa Hemling
Mon, 06/03/2024 - 13:32

Discover how a simple brain break activity, involving water balloon tosses, creatively reinforces the principles of Brønsted-Lowry acids and bases, making chemistry engaging and accessible for students. 

Recent activity: 1 week 4 days ago
by Melissa Hemling
Tue, 05/21/2024 - 14:59

Use the classic Lava Lamp Lab to make the concept of intermolecular forces more accessible!

Recent activity: 3 weeks 3 days ago
by Michael Jansen
Thu, 05/16/2024 - 11:46

The meaning of chemistry vocabulary may seem obvious to the teacher, but we cannot assume that students have the same understanding.

Recent activity: 4 weeks 1 day ago
by Melissa Hemling
Thu, 05/16/2024 - 07:50

Use magnetic chess as a brain break during chemistry class to help introduce potential energy versus interparticle distance graphs in a memorable way!

Recent activity: 4 weeks 1 day ago
by Tom Kuntzleman
Sat, 05/04/2024 - 07:44

Adding dyes to salting out experiments can create a variety of interesting color effects as the dyes differentially dissolve in the aqueous and organic layers. Can this differential solubility of dyes be explained using intermolecular forces as a guide? 

Recent activity: 1 month 1 week ago
by Josh Kenney
Wed, 05/01/2024 - 10:37

Josh Kenney explains an innovative POGIL-like approach to teaching stoichiometry, integrating LEGO pieces. Addressing student difficulties with stoichiometry's abstract nature, he designed a custom LEGO activity inspired by existing resources, promoting collaboration and enhancing conceptual grasp. This engaging approach primes students for complex stoichiometry challenges.

Recent activity: 1 month 2 weeks ago
by Michael Jansen
Thu, 04/25/2024 - 11:50

From bond energies to thermochemical equations, explore the convergence of pathways to the same result in teaching Hess’s Law of Heat Summation.

Recent activity: 1 month 2 weeks ago
by Ashley Green
Tue, 04/23/2024 - 11:39

Dive into the topic of gas laws through a station-based activity designed to engage students in hands-on exploration. Students articulate their understanding through particulate models.

Recent activity: 1 month 3 weeks ago