Simple methods to prepare liquid air are described. In addition, ways to test the properties of liquid air and other liquefied gases are explored.
The solution to Chemical Mystery #11, which involves the Leidenfrost Effect, is presented.
What happens if you place metal that is glowing orange-hot into some water? Watch this video and find out!
Joshua Schrier has taken on a traditionally difficult task, teaching computational chemistry. To do this successfully, the student has to have programming skills, a solid foundation in the theory and background in the methods employed from classical physics to quantum methods. Thus the task is daunting and why so few have taken it on.
In a previous blog post, I shared a book Chemistry: A Very Short Introduction, by Dr. Peter Atkins. For my summer reading I wanted to get back to reading some chemistry non-fiction. I did, however, diverge from my original plan to read Eric Scerri's The Periodic Table: It's story and significance. Instead. "Four Laws That Drive the Universe" (with an alternative title of The Laws of Thermodynamics: A Very Short Introduction) became my next book as I so thoroughly enjoyed the writing style of Peter Atkins. The Kindle Version is only $6.15 and worth every penny in my opinion.
In Chemical Mystery #10, plastic straws are observed to “magically” change color when waved in the air. Check out the explanation and the video.
I think this experiment provides a fantastic vehicle to involve students of all ages in small, hands-on and exploratory research projects. Like many others, my students and I have investigated various aspects of this interesting fountain.
After spending the start of the year using a modified version of the Modeling Instruction curriculum (density and physical properties, followed by gas laws, followed by energy and phase changes), we don’t actually start talking about what’s inside atoms until December. I love that by this point students are already familiar with some of the habits of mind needed to reason abstractly about atoms -- thinking proportionally, explaining macroscopic observations at the particle level -- and we are ready to layer on both more abstraction and the symbolic level. By January, we are ready to explore electron configurations.
I recently stumbled upon this article and it is a super handy resource for kinetics labs (and a nice review of Analytical courses from my college days).
The chemistry of the Sky Blue dye found in McCormick's Color From Nature food colors is explored. This is part one of a three-part series in which the chemistry of McCormick's Color From Nature food colors is presented.