Curated OER
Nutrient Cycling
AP environmental science or college-level ecology classes will glean a tremendous amount of information on nutrient cycles from this detailed PowerPoint. It covers nutrient requirements, biogeochemcial cycles, decomposition rates, and...
Curated OER
Rate of Decomposition of Hydrogen Peroxide
Students devise an experiment to test the rate of decomposition of hydrogen peroxide. In this rate of reactions lesson plan, students use the given information in the lab to write a procedure that will allow them to find the rate of...
Curated OER
2002 U.S. National Chemistry Olympiad National Exam - Part III
Two laboratory problems are put forth for chemistry students. They are to plan and carry out an experiment that will answer each of the questions. The first asks them to investigate a relationship between the surface area of a potato and...
American Chemical Society
A Catalyst and the Rate of Reaction
More than 90 percent of chemical products are made using a catalyst. Lesson demonstrates the way a catalyst changes the rate of reaction without altering the chemical reaction. A catalyst doesn't appear as a reactant or a product, yet it...
Curated OER
Rate Law Problems
If you need a variety of questions for reactions and rate calculations, this resource is for you. Inspire your students to manipulate values and equations to fit the questions. The word problems are quite involved and require young...
Pingry School
Kinetics of the Acid Decomposition of Thiosulfate
Several factors affect the rate of a chemical reaction including temperature, surface area, and concentration. Using an experimental approach, learners explore the effect concentration has on this rate while maintaining consistency with...
Purdue University
Getting the Dirt on Decomposition
Sometimes science requires getting a little dirty. A hands-on instructional activity explores the idea of decomposition by building a compost structure. Using red worms and dirt, individuals build and collect data on the rate of...
Curated OER
Rate of Decomposition
Young scholars experiment with the decomposition rate of garbage. They discover that environments are fragile and need to be protected and resources are not always used wisely. They then think about their own environment and then about...
Curated OER
Marine Debris
Now is the time to educate tomorrow's citizens to care for the planet, and here is a instructional activity to help facilitate the process. Collect some marine debris and bring it into class. Have your class separate it into types and...
Curated OER
Forest Decomposition
Learners explore decomposition. Students define and describe components of the decomposition process. Learners make a composter in a terrarium. Students record observations and changes weekly, drawing conclusions about the results of...
Curated OER
Identifying and Explaining Reactions
Introduce high schoolers to chemical reactions with this series of activities. In a little over an hour, scientists observe four gas-producing reactions: the combination of hydrochloric acid and sodium hydroxide, placing pasta in...
Curated OER
Case of the Missing Pumpkin
Scientists define and discuss decomposition, and watch pumpkins decompose and return to soil in classroom experiment. They record the date the experiment began, chart changes in pumpkins on a calendar, count how many days it takes...
Curated OER
Catalysts and Enzymes
Biochemists experiment with the oxothermic decomposition of hydrogen dioxide by adding manganese dioxide. They observe how pepsin enhances the action of acid on the digestion of egg white proteins. They use yeast to make bread rise. All...
Curated OER
Chemical Reaction Rates
Students observe demonstrations to show factors that affect rates of chemical reactions. In this rates of chemical reactions lesson plan, students investigate how catalysts, reactant concentrations, temperature and surface area affect...
Discovery Education
Perfectly Decomposed!
We all know someone who won't eat the banana with a brown spot, the grape with a dimple, and the apple with a bruise. Scholars use different fruits to explore what happens when fruits really start to decompose. They set up an experiment...
Curated OER
Kinetics
In this kinetics worksheet, students review activation energy, rate of reaction, and reaction mechanisms. This worksheet has 13 multiple choice questions.
Curated OER
Casual Patterns in Ecosystems
Ecology explorers or beginning biologists view a time-lapse film of decaying strawberries. They discuss how decomposition occurs and what factors might affect the rate of decay. Alone, the lesson plan is lacking engaging attributes....
Curated OER
A Symphony of Decomposers
Students discover decomposition. In this environmental lesson, students explore different types of decomposers and their role within the ecosystem. Students also discover how waste interferes with the decomposition process.
Curated OER
Case of the Missing Pumpkin
Students explore the process of decomposition. In this science instructional activity, students carve a pumpkin and observe as it decomposes. Students compare the changes to an uncarved pumpkin. Students write about the disappearing...
Curated OER
Kinetics Practice 2-Key
In this kinetics worksheet, students solve seven problems related to chemical reactions and their rates. Students identify rate laws for mechanisms, they draw reaction diagrams, and they determine rate constants.
Curated OER
Exothermic vs. Endothermic
The PowerPoint opens with video footage of the decomposition of nitrogen triiodide and then explains it with diagrams. Graphs of exothermic and endothermic reactions are exhibited, as well as one for the effect of a catalyst on reaction...
Curated OER
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...
Curated OER
De"compost"ition
Students develop an understanding of the decomposition process and the parameters which influence the rate at which it occurs.
Santa Monica College
The Properties of Oxygen Gas
Scholars generate and collect pure oxygen through a decomposition reaction of hydrogen peroxide in the fourth lesson of an 11-part series. Then, they complete six investigations into the properties of oxygen.