Mixing Vinegar & Chalk | Geology Unit
Check out the updated demonstration with Natural Chalk
• What Happens When You Add Vinegar to Natur...
We got the inspiration for this project from the book called Mountains and Volcanoes by Barbara Taylor. However, we didn't have naturally occurring chalk to perform the demonstration properly, so we improvised and used baking powder and baking soda as an alternative. While the results were dramatic, we were still interested in finding out if chalkboard chalk is indeed naturally occurring chalk, so we tried this project one more time and this time we crushed the chalkboard chalk. The results were the same: barely any bubbles. We finally determined that our chalkboard chalk is indeed gypsum.
If you have natural chalk, I encourage you to try this out!
Duration: 20-30 minutes (including set up and clean up)
Level: easy
Grades: all
You can find the complete list of materials we used for this unit, including pictures, links and descriptions of each book or kit, videos, resources and more at the blog post that accompanies this video:
https://www.pepperandpine.com/mineral...
Book referred to in this video is Mountains and Volcanoes by Barbara Taylor
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