You probably know what happens when you place dry ice in water. Do you know what happens when dry ice is placed in acetone or glycerin? Read this and find out!
Have you ever wondered where the cloud comes from when dry ice is placed in water? If you think the answer is “atmospheric water vapor”, be sure to read this post because experimental evidence suggests that this explanation is wrong.
Most chemistry teachers I know do flame tests with their students. It ties in well with many topics, is colorful and the kids enjoy seeing the colors and burning stuff. There are many applications. For years I always mentioned that astronomers use the idea of the flame test. They simply look at stars and examine the spectra from the light of these stars. They then match the spectra with the elements and then they can see and infer what elements are millions of light years away. I always mentioned this but never was able to demonstrate it.
Scientists are sitting on top of the world after detecting gravitational waves for the first time. Now what?
The American Modeling Teachers Association (AMTA) website is the official source for information on Modeling InstructionTM (MI). Whether you are an experienced Modeler or simply interested in learning more about MI, I encourage you to visit the newly redesigned site and check out the available resources.
Graphene may be the most remarkable substance ever discovered. But what's it for?
The Higgs boson is one of our era’s most fascinating scientific frontiers and the key to understanding why mass exists. The most recent book on the subject, The God Particle, was a bestseller.
The MOSART tests are designed to measure understanding of science concepts. The name, MOSART, stands for:
Misconceptions-Oriented Standards-based Assessment Resources for Teachers
At the Solvay Conference on Physics in 1927, the attendees included Albert Einstein, Max Planck, Niels Bohr - and just one woman (Marie Curie). Almost 90 years later, why does science remain so much of an old boys' club?