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Students will make the same two clear colorless solutions (baking soda solution and calcium chloride solution) from Lesson 3. They will help design an experiment to see if the temperature of the solutions affects how fast they react. Students will then try to explain, on the molecular level, why the temperature affects the rate of the reaction. ObjectiveStudents will be able to identify and control variables to design an experiment to see if temperature affects the rate of a chemical reaction. Students will be able to explain, on the molecular level, why the temperature of the reactants affects the speed of the reaction. EvaluationDownload the student activity sheet, and distribute one per student when specified in the activity. The activity sheet will serve as the “Evaluate” component of each 5-E lesson plan. SafetyBe sure you and the students wear properly fitting goggles. Materials for the Demonstration
Materials for Each Group
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