We used liquid nitrogen to visualize the aerosol particles emitted while speaking, coughing, breathing, and sneezing. We also tested the ability of various masks to block these droplets.
Tom Kuntzleman's blog
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...
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!
Solutions of copper (II) dissolved in acetone are easy to prepare, and can display orange, yellow, green, and blue color depending upon conditions. Such solutions allow for a variety of demonstrations and experiments that illustrate principles of chemical equilibrium.
I observe a red to blue color change when I rinse my bowl after eating frozen blueberries. Sounds like an acid-base reaction, doesn’t it? Well, read on to learn about the blueberry surprise!
What do scientists have to say about the connection between climate change and the bush fires in Australia?
Chemistry and lasers can be used to create a demonstration that includes several colors and flashing lights. This demonstration connects to topics in quantum chemistry and phase changes.