When chemical reactions absorb heat the environment around the reaction becomes colder. Students will create an endothermic reaction and monitor the change in temperature as the reaction occurs. Students will then examine a commercial application that exploits endothermic reactions, the instant cold pack. The kit contains enough materials for 15 groups.

 WARNING: This product can expose you to chemicals including Acetyl Salicylic Acid/Aspirin, which is known to the State of California to cause reproductive harm. For more information go to http://www.P65Warnings.ca.gov

Kit Includes:

8 pkg x 2 tabs Sodium bicarbonate/citric acid tablets
15 Plastic cups
15 Stirring sticks
15 Bags containing: 25 g Ammonium nitrate, 1 tbsp Vermiculit