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

Blogs at ChemEd X reflect the opinions of the contributors and are open to comments. Only selected contributors blog at ChemEd X. If you would like to blog regularly at ChemEd X, please use our Contribution form to request an invitation to do so from one of our editors.

by Tom Kuntzleman
Wed, 02/21/2018 - 10:59

What happens if you cool a Scrub Daddy sponge in liquid nitrogen (or dry ice) and subsequently strike it with a hammer? Let's find out! 

Recent activity: 1 day 19 hours ago
by MeyersChemistry
Mon, 02/19/2018 - 14:28

Have you been watching the Winter Olympics? I have been able to draw many similarities and relevance to what I am teaching in the classroom. How about you?

Recent activity: 3 days 15 hours ago
by Kaleb Underwood
Tue, 02/13/2018 - 22:08

As I drive home from work every day in Houston, TX I am greeted by the entrancing voice of Dr. John Lienhard, now an Emeritus Professor of Mechanical Engineering and History at the University of Houston.

Recent activity: 1 week 2 days ago
by Chad Husting
Sat, 02/10/2018 - 18:04

The concept of the mole has always been a challenging topic for myself and my students. The challenge comes in part when we try to imagine 6.02 x 1023 of anything. Another challenge for some students is the math and theory behind this number and concept. I have tweaked an activity to help guide my students to an understanding of these concepts.

Comments: 12
Recent activity: 1 day 11 hours ago
by Jordan Smith
Mon, 02/05/2018 - 15:33


Do you require your students to learn all the element names and symbols? Do your students struggle with chemical nomenclature, chemical equations, or stoichiometry? You may want to consider getting them back to the basics.

Comments: 13
Recent activity: 17 hours 59 min ago
by Tom Kuntzleman
Sun, 02/04/2018 - 10:02

A simple laboratory experiment in which students simply measure the wavelength of light is described. An LED light, diffraction glasses, and a meterstick are the only required materials.

Recent activity: 2 weeks 4 days ago
by Lowell Thomson
Fri, 01/26/2018 - 06:15

In this blog post I will discuss an interview with Dr. Richard Feynman relating to magnets that explores the concept of "why?" questions in science. You will find a links to a blog post and a transcript of the interview along with ideas for how I use the video in IB Chemistry.

Comments: 2
Recent activity: 2 weeks 3 days ago
by Michael Morgan
Wed, 01/24/2018 - 16:44

The American Association of Chemistry Teachers (AACT) has just made a major announcement. The first AACT Chemistry Teacher of the Year Awards have just opened their nomination process. Awards will be given to teachers in each of three levels of chemistry education. One for K-5 teachers of science, one for grade 6-8 teachers of physical science, and one for high school chemistry teachers.

Recent activity: 1 month 14 hours ago
by Andres Tretiakov
Sun, 01/21/2018 - 16:36

I have tried many different methods to demonstrate or perform displacement reactions over the years with mixed results regarding one particular metal, aluminium. Based upon my experience, the behavior of aluminium in displacement reactions often confuses students. 

Recent activity: 1 month 2 days ago
by Chad Husting
Wed, 01/17/2018 - 18:01

My students just finished an activity about isotopes. Each year there is always one or more student who ask about the mass of isotopes. How do scientists solve for that mass experimentally?

Recent activity: 1 month 2 days ago