Energy Changes in Chemical Reactions

The heat of solution measures how much thermal energy a dissolving substance consumes or gives off. The experiment demonstrates both endothermic and exothermic reactions. Scholars dissolve several substances, measure the temperature change, and graph their data. 

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CCSS: Adaptable
NGSS: Designed
Additional Tags
Instructional Ideas
  • Break vocabulary into prefixes and root words to make connections: exothermic and exoskeleton, endothermic and thermometer, etc
Classroom Considerations
  • Relies on prior knowledge of temperature and energy
  • Bucket of water must be at room temperature so plan ahead
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information
  • Uses simple materials
  • Provides multiple levels of difficulty to keep everyone in a group engaged
  • Includes a grading rubric
  • None