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published by
the Science House
educational validator: Sharon Schulze
This page features an experiment designed to help secondary science students differentiate physical and chemical change. Using easily-acquired materials (baking soda, cabbage juice, and calcium chloride), students will investigate reactions that happen inside four sealed plastic bags. Their task is to determine whether the changes are chemical or physical (the experiment provides two of each).
CAUTION: This experiment is, overall, safe for young adolescents. However, plastic bags expand, so care should be exercised to prevent excessive pressure build-up that could result in bursting. In addition, when calcium chloride is dissolved in water, heat is given off. These solutions should be handled with gloves. The Science House is a project based at North Carolina State University. It sponsors teacher training programs, curriculum development, web-based experiments for use in K-12 classrooms, long-term loans of laboratory equipment, summer student research programs, and community outreach.
AAAS Benchmark Alignments (2008 Version)4. The Physical Setting
4D. The Structure of Matter
11. Common Themes
11A. Systems
ComPADRE is beta testing Citation Styles!
Record Link
<a href="https://www.compadre.org/portal/items/detail.cfm?ID=11174">Science House. Countertop Chemistry: Ziptop Bag Chemistry. Raleigh: Science House, December 31, 2010.</a>
AIP Format
(Science House, Raleigh, 2010), WWW Document, (https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/).
AJP/PRST-PER
Countertop Chemistry: Ziptop Bag Chemistry (Science House, Raleigh, 2010), <https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/>.
APA Format
Countertop Chemistry: Ziptop Bag Chemistry. (2010, December 31). Retrieved May 3, 2025, from Science House: https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/
Chicago Format
Science House. Countertop Chemistry: Ziptop Bag Chemistry. Raleigh: Science House, December 31, 2010. https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/ (accessed 3 May 2025).
MLA Format
Countertop Chemistry: Ziptop Bag Chemistry. Raleigh: Science House, 2010. 31 Dec. 2010. 3 May 2025 <https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/>.
BibTeX Export Format
@misc{
Title = {Countertop Chemistry: Ziptop Bag Chemistry},
Publisher = {Science House},
Volume = {2025},
Number = {3 May 2025},
Month = {December 31, 2010},
Year = {2010}
}
Refer Export Format
%T Countertop Chemistry: Ziptop Bag Chemistry %D December 31, 2010 %I Science House %C Raleigh %U https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/ %O text/html
EndNote Export Format
%0 Electronic Source %D December 31, 2010 %T Countertop Chemistry: Ziptop Bag Chemistry %I Science House %V 2025 %N 3 May 2025 %8 December 31, 2010 %9 text/html %U https://sciencehouse.ncsu.edu/educators/k-12-instructors/lesson-plans/countertop-chemistry/ziptop-bag-chemistry-experiment-5/ Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
Citation Source Information
The AIP Style presented is based on information from the AIP Style Manual. The APA Style presented is based on information from APA Style.org: Electronic References. The Chicago Style presented is based on information from Examples of Chicago-Style Documentation. The MLA Style presented is based on information from the MLA FAQ. |
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