Tom Kuntzleman's blog

Further investigations of the M&M Mystery Tom Kuntzleman wrote about previously.

Check out the answer to Chemical Riddle #2.

A student of mine, Anthony Shepherd, and I worked together to develop a new chemical riddle. Check out the video and see if you can come up with an answer.

In the video below, you can find the solution to the chemical riddle involving the food dye and bleach experiment.  You can also find a description of how to set up and carry out the experiment.  Finally, an extension to the activity is presented.  Thanks to Erica Jacobsen, James Hanson, and Alfredo Ti

Can you solve the chemical riddle described in the video below?

Build a periodic table out of Lego blocks.

Did you know that Pyrex glassware used in chemistry labs is different than Pyrex glassware used in kitchens? Pyrex glass used in chemistry experiments is made of borosilicate glass, whereas the Pyrex used when baking is made of soda lime glass. What’s the difference?

The nail bottle demonstration is one that many of us have conducted in our classes. To perform this demonstration, 2 – 3 mL of ethanol is placed into a plastic bottle that has two nails punctured into opposite sides of the bottle. After stoppering the bottle, a Tesla coil is touched to one of the nails. A spark jumps from one nail to the other, which initiates the combustion of vaporized ethanol inside the bottle. We recently filmed this reaction with our high speed video camera.