Change the Reaction Rate of a Foaming Reaction

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In 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… Read more

Use these free STEM lesson plans and activities to teach students about biotechnology—options for all grade levels! Biotechnology involves using biological processes and systems to make or improve products. Using yeast to make bread is often offered as a simple example of biotechnology, as a living organism (yeast) is used to make a specific food product (bread). Many people think of biotechnology, however, in more cutting-edge contexts,… Read more

Use these free chemistry lesson plans, experiments, and activities to teach and explore chemical reactions with K-12 students. A chemical reaction occurs when two or more substances (reactants) are mixed together and result in one or more new substances (products). When teaching about chemical reactions, educators show chemical reactions in action and, when possible, let students get hands-on exploring reactions. With classroom science experiments,… Read more

Plan your school year with ease! Choose from 200+ free science and engineering lesson plans for K-12 teachers! Science Buddies first started developing NGSS-aligned educator lesson plans in 2017. Our free Lesson Plans help K-12 educators confidently teach science and engineering concepts to students. Today there are more than 200 plug-and-play lessons on our site to support educators teaching science, technology, engineering, and math (STEM). Lesson… Read more