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Curated OER
Hydrogen Peroxide Analysis
A scenario is presented for chemistry techs to address. Using titration techniques, they must analyze hydrogen peroxide solution samples. They evaluate accuracy and precision in the process. They also gain experience consulting the MSDS...
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H2O2 Decomposition Lab II
Students conduct an oxidation experiment in which they must determine how much hydrogen peroxide (H2O2) is actually in a store-bought solution of H2O2.
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H2O2 Decomposition Lab I
Students conduct an experiment to determine how much hydrogen peroxide (H2O2) is actually in a store-bought solution of H2O2.
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Chemical Formulas for Molecules
Newcomers to chemistry compare hydrogen peroxide to water, realizing that the difference of one oxygen atom significantly affects the chemical properties. Other pairs of compounds and their formulas are also examined. A few chemical...
Cornell University
Discovering Enzymes
Explore the function of enzymes through a series of lab investigations. Learners use household enzymes such as hydrogen peroxide to model the role of enzymes. The enzymes break down proteins with and without a catalyst.
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Chemiluminescence
High schoolers explore chemiluminescence through various experiments. For this chemistry lesson, students explain the chemical reaction that drives the process. They give real life applications of chemiluminescence.
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Catalase and Catalysis
Students explore enzyme catalysis through a series of experiments. In this chemistry lesson, students determine the factors affecting catalysis. They explain the different uses of this process.
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Activity #19 Oxygen For Yeast
Students observe and record what occurs when yeast is added to hydrogen peroxide. They indicate why a chemical reaction (decompostion) must have occurred during the experiement. Pupils explain why yeast was used. Students comprehend the...
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Reaction Rates and Catalysis in Ethanol Production
Young scholars investigate alternative catalysts for the degradation of hydrogen peroxide. In this fermentation lesson students complete an activity that breaks down cellulose into sugar.
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How Can You Tell One Clear Gas From Another?
Fifth graders perform experiments to determine the identity of an unknown gas sample. In this chemistry instructional activity, 5th graders fill balloons with air, oxygen, hydrogen, and carbon dioxide. They use mass and reactivity to...
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Magic Genie
Students observe the chemical change that occurs when sodium iodide is dropped into a flask containing 30% hydrogen peroxide. They discuss how this exothermic reaction occurred as they study the chemical equation involved in the reaction.
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Not a Drop to Drink
Young scholars design an experiment to determine which liquid is water. In this chemistry lesson, students perform the experiment as outlined in their design. They record observation and formulate conclusion.
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Reaction Rates-Catalysis, Concentration, Surface Area, and Temperature
Young scholars determine the meanings of concentration, surface area, and catalysis through an experiment. In this lesson about chemical reactions, students participate in an experiment. Young scholars complete three different parts of...
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Chemical Changes
Sixth graders explore chemical and physical changes. For this lesson about chemical changes, 6th graders observe various items and changes that occur at certain times. Students determine what change took place and observe the change....
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Hot Gas Or Cold Gas Lab
High schoolers engage in a lab project to study chemical reactions. They use guided questions to help facilitate the lab experience and come to the correct outcomes. The lesson does not contain a true understandable objective. The lesson...
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Separation of Mixtures and Compounds For K Through 12
Students explore mixtures and compounds. In this lesson, students do an experiment to distinguish between mixtures and compounds. Students complete ten different phases of the experiment testing many different substances. Students will...
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Molecular Evolution in Plants
Students are using a paper chromatography study that is suitable for introductory biology. The absorption spectra studies and gel electrophoresis studies are appropriate for students who have complete both introductory biology and...
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Chemical Changes
Students explore chemical changes. in this lesson about the properties of chemical changes, students do experiments, observe, and record results. Students complete four experiments in order to observe chemical changes. In each experiment...
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Lead and Mercury Ion Catalase Inhibition
Students participate in a laboratory investigation in which they observe the effect of temperature and pH on enzyme activity. Students also examine exposure to heavy metal ions and the effect that may have on enzyme activity.
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Chemical Change and Physical Change
Sixth graders combine chemicals to create a chemical change. In this chemicals lesson plan, 6th graders will investigate characteristics of chemical change by combining chemicals. They will learn that color change is an indicator of...
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Molecular Evolution in Plants
Students examine chlorophylls. They explore the absorbing pigments in a variety of plants. Through activities, students determine spectrophotometrically. They compare plant proteins from the family Brassicace to assess the level of...