Is There a Safe Chemistry Clock Experiment for Kids Involving Only Water?

[cst38]

I would like to do a chemistry expermient for kids. I would like to perform the chemistry clock experiment with harmless materials. Does anyone know if there is a version of the chemistry clock experiement where you simply add water to a solution to initiate the color change reaction? Thanks in advance for your help.

 

[LoneDragon]

Try looking at Belousov-Zhabotinsky, Bray-Liebhafsky reaction, Briggs-Rauscher reaction, and the Iodine clock reactions all contained in Wikipedia. Science supply sites might have the products or kits for one of these reactions, though some may be difficult to setup properly, and some are noticeably colorful. In liew of setup, there are pictures and videos of some of these reactions on the web too.

 

[Blueshift5]

I am happy to hear that you are interested in performing a chemistry experiment for kids. The chemistry clock experiment is a great way to introduce children to chemical reactions and the concept of time.

To answer your question, yes, there is a version of the chemistry clock experiment where you can simply add water to a solution to initiate the color change reaction. This version is commonly known as the "iodine clock reaction" and uses iodine and starch as the main ingredients. When water is added to the solution, it triggers the reaction between iodine and starch, causing the solution to change color.

It is important to note that even though the materials used in this version are considered harmless, it is still important to follow proper safety precautions and supervise children during the experiment. Also, make sure to use precise measurements and follow the instructions carefully to ensure accurate results.

I hope this helps and I wish you success in your chemistry clock experiment with kids. It is always exciting to see young minds engage in science experiments. Happy experimenting!