KIT EXOTHERMIC REACTIONS

Allow students to see how chemistry can be used in a beneficial manner. Most students are probably familiar with heat packs, or hand warmers. Utilizing the release of chemical energy, these self-contained exothermic reactions are quite useful in cold environments. In this activity, students will first investigate the temperature change of an exothermic reaction and then examine how the oxidation of iron, in a process similar to rusting, can be used to create the little bags of heat used to keep hands and feet warm. The kit contains enough materials for 15 groups. Teacher’s Manual and Student Study Guide copymasters are included. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B; PS3.A Performance Expectations: MS-PS1-2; HS-PS1-4; HS-PS3-2 Cross Cutting Concepts: Energy and Matter; Structure and Function; Patterns Engineering Practices: Developing and Using Models; Analyzing and Interpreting Data; Obtaining, Evaluating and Communicating Information Kit Includes: 100g Calcium Chloride 15 Plastic Cups 15 Stirring Sticks 15 Bags containing: 25g Iron Powder, 1g Sodium Chloride, 5g Calcium Chloride, 1 tbsp Vermiculite DOT Info: Non-regulated *”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.