Lesson Plan

Predicting Chemical Reactions

Prove the Law of Conservation of Mass through a lab investigation. A well-designed lesson plan asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products allows individuals to prove the conservation of mass.

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Instructional Ideas
  • Begin with demonstrations of chemical reactions with different indicators of reactions
Classroom Considerations
  • Lab investigations require specific materials and time for preparation
  • Review safety procedures with pupils prior to the activity
  • Builds on prior knowledge of balancing chemical equations
  • Includes an extension activity
  • None