The Chemistry of Lightning
Tom Kuntzleman | Tue, 09/20/2022 - 09:42
Learn a bit about the chemical reactions that occur during a lightning strike, and how you can demonstrate these reactions in your classroom.
endothermic/exothermic
Thermochemistry Interactive Notebook Unit
Nora Walsh | Sun, 06/19/2022 - 12:47
Nora Walsh shares the outline of the interactive notebook pages she uses for her thermochemistry unit. All of the documents and foldables are available for download.
Generating explosive gases from sand
Tom Kuntzleman | Fri, 01/07/2022 - 12:16
Did you know that sand can be converted into a mixture of gases that spontaneously ignites in air? The procedures involved are relatively simple to perform, spectacular to observe, and relate to a rich assortment of chemical principles.
Thermochemical Analysis of the Devil's Milkshake
Tom Kuntzleman | Wed, 10/28/2020 - 14:14
Learn how to thermochemically analyze the Devil's Milkshake chemical demonstration - just in time for Halloween!
Paraffin Wax - an Exothermic Reaction: Caution
Chad Husting | Sun, 08/18/2019 - 11:12
I met some amazing teachers at Chem Ed 2019. Two of these teachers are Yvonne Clifford and Sharon Geyer who ran a workshop about chemical demonstrations. One in particular caught my attention. The demonstration was an exothermic process with paraffin wax. Here is the demonstration.
Why Green Chemistry? Or Better Yet, Why Not Green Chemistry?
Erika Fatura | Mon, 08/05/2019 - 22:50
My top 5 reasons for using Green Chemistry in my classroom along with a few examples of replacement labs that follow Green Chemistry principles.
Endo and Exothermic Demonstration
Chad Husting | Sun, 11/25/2018 - 09:19
Observe both an exothermic and an endothermic reaction/process as I use a modified propane torch in the video demonstration.
Demonstration: Reaction of Magnesium and Silver Nitrate
Kaleb Underwood | Tue, 05/02/2017 - 08:55
I found a version of this demonstration online a couple of years ago. I admit, when I first tried it with my class it was mostly for a crowd pleaser to demonstrate the activity series of metals, but I then became very intrigued by the processes occurring. The original source only referenced the “single replacement reaction” between Mg(s) and AgNO3(aq). Therefore, when I saw a grayish product (silver) I was not surprised. However, I was surprised by the white flash and the production of a white product, which were reminiscent of the classic combustion of magnesium demonstration. This led to some research and my conclusions that follow. Read through to the end and you will find a video of the demo.
Endothermic and Exothermic Activity
Deanna Cullen | Tue, 04/29/2014 - 17:23
Endothermic and exothermic reactions and processes are a common topic in chemistry class. This activity provides examples that can be done with household materials.
Ice Cream in a Bag
Deanna Cullen | Mon, 04/28/2014 - 13:10
Make ice cream in a baggie to emphasize energy changes, direction of energy transfer, dissolution and colligative properties.