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!
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.
Curricular Alignment for Student Success
The February 2018 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: diversity within the classroom; assessment and curricular alignment; innovations in laboratory curriculum; electrochemistry; analytical chemistry labs; exploring materials science; engaging teaching approaches; historical perspectives; distilling the archives: lab-on-a-chip and microfluidic devices.
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.
Celebrating Ninety-Five Years
The January 2018 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: exploring magnetic properties; examining outreach practices; spectroscopy; understanding chemical changes over time; laboratory curriculum reform; teaching scientific communication; analytical chemistry activities; biochemistry laboratories; 3D printing molecular models; from the archives: chemistry outreach.
One of my goals for 2017 was to read more chemistry non-fiction. I accomplished that with three and a half books read. That doesn't seem like much, but given how busy I've been lately it was quite an accomplishment! I offer a brief review of my most recent book here, "The Alchemy of Air" by Thomas Hager.
The science behind the incredibly popular Scrub Daddy sponge is investigated. Part of the appeal of the Scrub Daddy sponge is that it changes from soft to hard depending upon temperature. This allows a single sponge to be transformed into a hard scrubber or soft sponge, depending upon the temperature of water into which it is placed.
Erica Jacobsen shares highlights from the December 2017 issue of the Journal of Chemical Education.
Improving Student Perception and Performance
The December 2017 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: functional nanomaterials and chemical detection; improving student performance; peer-led instruction; simulations and computer-based learning; engaging and interactive instruction; synthesis laboratories; NMR spectroscopy and mass spectrometry; innovative physical chemistry investigations; ConfChem Conference on select 2016 BCCE presentations; from the archives: music and chemistry.
Decorative beads are tested for the presence of iron pyrite, or FeS2, in an activity well-suited for the National Chemistry Week theme of "Chemistry Rocks!"