Curated OER
Chemical Weathering
Students measure the effect of water temperature on the rate of a chemical reaction, similar to the interaction of a weak acid and carbonate rock, using hot water and effervescent antacid tablets.
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Chemistry Crossword
In this chemical reactions activity, students complete a crossword puzzle by figuring out the vocabulary words associated with 34 clues.
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Speeding up the Fizz
Students investigate temperature and chemical reactions. They explore the effect of temperature and particle size has on the rate of a simple chemical reaction. In addition, they graph their results and answer assessment questions.
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The Role of Enzymes
Students explore the role of enzymes in chemical reactions. In this enzymes lesson plan, students use hydrogen peroxide and manganese dioxide to observe a chemical reaction. Students observe the rates of reactions of chalk, hamburger,...
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Chemistry in the Kitchen
Students, in groups, combine given materials from an everyday kitchen until a chemical reaction occurs and record the reaction time.
Santa Monica College
Chemical Equilibrium and Le Chatelier’s Principle
Henri-Louis Le Chatelier wrote many papers throughout his 85-year life, but he is remembered for one of his earliest discoveries, now known as Le Chatelier's Principle. The final instructional activity in an 11-part series encourages...
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Rates of Reactions end Enzymes
Introducing enzymes and the controlling factors of a reaction this slideshow displays the typical rate of reaction graph and labels the main sections. The summaries of ways to measure reaction rates are valuable and the examples of...
Teach Engineering
Microfluidic Devices and Flow Rate
When you have to flow, you have to flow. The instructional activity introduces class members to microfluidic devices and their uses in medicine. They watch a short video on how the diameter affects the rate of flow. The worksheet has...
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Reaction Rates
In this chemical reactions worksheet, students explain why certain reactions take place slowly or quickly. Students calculate the rate of consumption for given reactions. This worksheet has 14 problems to solve.
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Chemical Reactions
In this chemical reactions worksheet, learners calculate the molar mass and the rate of reaction for the given chemical reactions. This worksheet has 3 problems to solve.
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Chemical Reactions and Balancing Equations
Students perform various laboratory activities involving chemical reactions. They write balanced chemical equations for all reactions observed using computer software.
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Gases and Chemical Reactions
In this chemical reactions worksheet, students calculate the volume or pressure for different gases. Students determine the effect of different stimuli on the rate of a chemical reaction. This worksheet has 1 short answer, 10 fill in the...
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Describing Chemical Reactions
In this chemical reactions worksheet, students fill in 12 blanks with the appropriate terms related to chemical reactions. They also indicate if 4 statements are true or false and match 7 words with their descriptions. Students complete...
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Chemical Interactions
Students perform scientific investigations to observe chemical reactions. For this chemical reaction lesson students read a passage and identify the cause and effect.
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Experiment on Measuring Reaction Rates
High schoolers investigate the rate of a chemical reaction. In this rate of reactions lesson plan, students use an electronic balance to measure the change in mass of a chemical reaction between hydrochloric acid and calcium carbonate....
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Rate Determining Step and Catalysts
Students investigate the rate determining step in a chemical reaction and how catalysts effect reactions. In this rate determining step and catalyst instructional activity, students work in groups to perform 5 tasks. They rotate each...
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Instantaneous Reaction Rate
In this instantaneous reaction rate worksheet, students draw an energy diagram for a given reaction, they determine the rate law for a reaction, they determine a rate constant for a reaction and they determine the reaction rate for a...
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Chemistry Quiz-Reaction Rates
In this reaction rates instructional activity, students solve eight multiple choice problems about chemical reactions and their rates. They determine what species would slow reactions, they apply concepts of activation energy to...
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Physical vs. Chemical Changes and "The Code"
In this chemical and physical change instructional activity, students read about the differences between substances going through physical changes vs. chemical changes. They are given examples of each and evidence to look for in chemical...
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Chemistry Midterm Topic Review
In this chemistry review worksheet, students answer and solve 95 questions about chemical reactions, hydrocarbons, functional groups, moles, acids and bases and solutions.
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2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
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2007 U.S. National Chemistry Olympiad Local Section Exam
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
Curated OER
2000 U.S. National Chemistry Olympiad Local Section Exam
This 60-question comprehensive exam was designed to determine who would go on to compete in the 2000 US National Chemistry Olympiad. Hopefuls answer multiple choice questions regarding all chemistry topics taught in the first year...
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Chemical Reactions
In this chemical reactions worksheet, students determine the order of a reaction based on experimental results. This worksheet has 5 problems to solve.