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by Tom Kuntzleman
Fri, 11/02/2018 - 14:04

You are likely aware that diamonds are converted - albeit slowly - to graphite under normal conditions. Thus, diamonds don't last forever, in contrast to the popular advertising slogan. However, did you know that you can use chemistry to prove that diamonds are not forever? It's simpler than you think... 

Recent activity: 7 months 4 weeks ago
by Ben Meacham
Fri, 10/26/2018 - 11:59

I added an extra step including a follow up Claim, Evidence & Reasoning activity to the familiar whoosh bottle activity.

Comments: 1
Recent activity: 7 months 4 weeks ago
by Gloria Gajewicz
Sun, 10/14/2018 - 21:07

This five puzzle mystery aligns with my chemistry curriculum after instruction on the properties of elements and electron configurations. I use this mystery as a review to prepare for assessments over the properties of elements, symbols on the periodic table and the difference between groups and periods. Also incorporated within the puzzles are basic trends such as the number of subatomic particles, mass number, melting point, and other characteristics of specific elements.

Recent activity: 5 months 3 weeks ago
by Stephanie O'Brien
Sun, 10/14/2018 - 15:37

Looking for funds to attend professional development? I used an ACS Hach Grant to fund my travel to a conference last summer.

Recent activity: 9 months 3 days ago
by Chad Husting
Sat, 09/29/2018 - 13:20

I teach in a school that was originally designed to be an “open air” school. The school was built with support walls all on the outside of the building. The building, built in the 1970’s, was built with “classrooms without walls”.

Recent activity: 9 months 2 weeks ago
by Tom Kuntzleman
Thu, 09/27/2018 - 13:51

A new event called "The Mole"was unveiled at BCCE 2018. I told the story of how one of my students discovered how to make marshmallows spark in the microwave oven.

Recent activity: 9 months 2 weeks ago
by Tom Kuntzleman
Tue, 09/25/2018 - 19:47

Based upon reader comments on previously published, Chemical Mystery #12, I experimented and found that this demonstration is easy to pull off with relatively inexpensive and easy to find materials.

Comments: 3
Recent activity: 7 months 8 hours ago
by Tom Kuntzleman
Fri, 09/21/2018 - 11:56

Check out the solution to Chemical Mystery #12: Baffling Balloons

Comments: 2
Recent activity: 9 months 3 weeks ago
by Tom Kuntzleman
Thu, 09/20/2018 - 12:30

Can you explain what is happening in Chemical Mystery #12? 

Comments: 9
Recent activity: 9 months 2 weeks ago
by Andrea Amato
Wed, 09/19/2018 - 15:49

I’ve always been fascinated by advanced polymeric materials; it’s amazing how materials that are generally considered “plastics” have such stunning properties. I recently watched a couple of movies about Batman and it came out that some of his devices and protections are made of advanced polymers. In particular, the suit is almost entirely made of Kevlar.

Recent activity: 9 months 4 weeks ago