The Ruben's Tube (also known as a Flame Tube) is a classic experiment used in physics classes. There's also a bit of chemistry to be learned while experimenting with a Ruben's Tube...
Potential enhancements to soda-based demonstrations of volcanic eruptions are described. Depending on the specific demonstration setup, outgassing of carbonated sodas can represent low-viscosity lava flows or more violent production of pyroclastic materials. These simple demos can be used as stand-alone experiments or in concert with other activities.
The Exploding Pringles can design challenge is an open-ended formative assessment developed by the ACCT team, which tasks students with designing an explosion that produces the maximum boom within a Pringles container with a fixed volume.
The solution to Chemical Mystery #17 is presented. Were you able to use your chemical knowledge to explain the results?
If you know your chemistry, you can figure out how the bubbles get busted!
This is the formative assessment activity entitled "The Exploding Pringles Can Design Challenge" designed by the ACCT project.
Michael Morgan is the president of the Chemistry and Physics on Stamps Study Unit. He has collected stamps and shared his interest with others for almost 30 years.
With the current global COVID-19 pandemic, there has been much discussion of “flattening the curve” by social distancing. These ideas can be demonstrated chemically, for example, by the iron-catalyzed decomposition of hydrogen peroxide to produce an oxygen gas foam. Decreased hydrogen peroxide concentrations, representing decreased human population concentrations from social distancing, produce oxygen gas foam, representing cases of illness, at a slower rate. A similar demonstration can be achieved using the popular Diet Coke and Mentos experiment. These simple experiments are best used as stand-alone demonstrations.
We are now in a situation in which the most compassionate response each of us can express toward anyone is to stay six feet away. Regardless of the circumstances, we still need to find a way to help our students.
With millions of teachers and students facing remote-learning because of COVID-19, a global experiment may be a great way to engage students at home.
