Sampler Reaction in a Bag

 

This is a great experiment to show chemical change. The students will observe heat being lost, heat being absorbed, color changes and the formation of a gas, all of which are evidence for a chemical reaction. This experiment is simple and easy for the instructor. Kids think it's cool. Now that's good science! This kit is good for 10 demonstations as it contains 150g Calcium Chloride, 150g Sodium Bicarbonate and 125mL Phenol Red.