Where to Find?
Hydrogen peroxide can be found at pool supply houses under the name of Baquacil – Shock and Oxidizer. It is 27%, stabilized and works well.
Calcium chloride can be purchased in bulk as SnoMelt-Instant Ice Melter at www.icemelters.com/snomelt.htm
The reusable sodium acetate hot pack can be purchased at http://healthyproducts.czdirect.com/begin.asp
Ammonium nitrate can be purchased as fertilizer at any Co-op or lawn and garden store.
Educational Innovations http://teachersource.com
Steve Spangler http://www.stevespanglerscience.com/experiment/00000152