Vocabulary: » Term: » Records: » ID: 637

Click image to see larger image	Vinegar and baking soda
Location	http://commons.wikimedia.org/wiki/Image:Ocet_spirytusowy.jpg
Observations	Two bottles of vinegar.
Explanations	Vinegar is an acid. An acid has a pH less than 7. When baking soda is added to vinegar, bubbles are produced and gas is released. Fizzing, bubbling, and change in smell are all evidence of a chemical reaction. The amount of gas produced using baking soda as an indicator tells you the relative concentration of the acid.
California Standards	Organism survival
National Standards	Nutrition
Related NSF Exemplary Curriculum	Food and nutrition Human body systems Food chemistry Investigating human systems
Related Sets	Acid test
Creative Commons License	This work is licensed under a Creative Commons Attribution-Share Alike 2.5 License.
Authors	N/A N/A None None
Publisher	None Mar 09 2008

This material is based upon work that was supported by the National Science Foundation under Grant No. 0127164 to California State University Fullerton. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.