Predicting Chemical Reactions

Prove the Law of Conservation of Mass through a lab investigation. A well-designed activity 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