Lesson Plan

Exothermic and Endothermic Reactions

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This Exothermic and Endothermic Reactions lesson plan also includes:

How can you tell the difference between endothermic and exothermic reactions? Chemistry scholars perform and observe two chemical reactions, measure the temperature throughout, then draw conclusions about changes in energy from their data. The experiment culminates when pupils develop their own definitions of exothermic and endothermic reactions.

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CCSS: Adaptable
NGSS: Designed
Additional Tags
Instructional Ideas
  • Pass out graph paper and have groups graph the data they collect from both experiments
  • Ask lab partners to research examples of chemical reactions in industry that could effectively be catalyzed using catalase
Classroom Considerations
  • Substitute kiwi or potato for liver in the experiment to reduce the mess factor
  • Limit group size to two or three students
Pros
  • Cleanup is easy, thanks to environmentally friendly reactants and products
  • The resource includes printable student procedures and data sheets
Cons
  • None
Common Core