Control the Reaction Rate of a Foaming Reaction
Grade Range
9th-12th
Group Size
3 students
Active Time
1 hour 25 minutes
Total Time
1 hour 25 minutes
Area of Science
Chemistry
Key Concepts
Chemical reaction, reaction rate, enzymes
Learning Objectives
- Understand how chemical reactions can be controlled and manipulated.
- Relate rates of chemical reactions to substrate concentration and frequency of collisions between reacting particles.
- Conduct experiments to determine chemical reaction rates or enzymatic activity.
Credits
Svenja Lohner, PhD, Science Buddies
OverviewIn this lesson, students will employ the enzymatic decomposition reaction of hydrogen peroxide to investigate how chemical reactions are affected by enzymes and different substrate concentrations. Students will be challenged to control the rate of the reaction by adjusting the amount of substrate and thus changing the catalase activity. Foam production, created by the enzymatic breakdown of hydrogen peroxide into water and oxygen, will function as a proxy for the reaction rate. Based on their results, students will then discuss chemical reaction rates based on the collision theory. NGSS AlignmentThis lesson helps students prepare for these Next Generation Science Standards Performance Expectations:
Materials![]() For each student group:
For teacher demonstration:
Reviews |
Grade Range
9th-12th
Group Size
3 students
Active Time
1 hour 25 minutes
Total Time
1 hour 25 minutes
Area of Science
Chemistry
Key Concepts
Chemical reaction, reaction rate, enzymes
Credits
Svenja Lohner, PhD, Science Buddies
Learning Objectives
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