The Amazing Build-Your-Own Chemical Reaction

by Erica Bartnicki Chemical reactions occur every day, all around us.  If you are interested in learning what happens during a chemical reaction, you can perform a simple one  at home.  The following “experiment” was done in Conceptual Chemistry, and can be used with any age group.  Mixing the two substances in the experiment below together can demonstrate many concepts.   Materials Needed:

• Vinegar
• Baking Soda
• Sandwich Bag (one that seals)
• A small cup (3 ounces)
• Tablespoon

Instructions:

1. Gather all your materials.
2. Place one or two tablespoons of baking soda inside the plastic baggie.
3. Next fill the cup with vinegar.
4. Place the baggie onto the table and carefully place the cup of vinegar in the baggie.
5. Next, seal the baggie (again be careful not spill the vinegar).
6. Once the baggie is sealed, tip the bag over so the vinegar spills in the baggie.
7. Keep one hand on the seal at all times.
8. If possible, feel the bottom of the bag as the reaction occurs.

Any time a new substance is formed, you get a chemical reaction. Mixing vinegar and baking soda produces a gas (carbon dioxide). Modifications for Younger or Older Students: This is a pretty simple experiment for most students.  To make it more interesting and complex, research and discuss different areas of science where this activity applies (properties of substances, reactions, changes in temperature and mass, etc.). Additional Resources and Links: http://www.chem4kids.com/ Has lots of great information about chemistry. http://www.apple-cider-vinegar-benefits.com/baking-soda-and-vinegar.html Explains the reaction as well as gives other experiment ideas. Since Fall 2010, Erica Bartnicki has taught a number of science courses for the Saturday Enrichment Program (SEP), including “Conceptual Chemistry”, “Crime Scene Biology”, and “Do the Genes Fit?”. In the upcoming winter term, she will be teaching “Planet Earth & Biology” for grades 2-3. Registration is now open!