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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...
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2002 U.S. National Chemistry Olympiad National Exam - Part I
As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...
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Addition Polymerization: Preparation of Polystyrene Using Two Types of Initiators
Advanced chemistry classes compare the polymerization of styrene using two different initators: benzoyl peroxide and aluminum chloride. Once they synthesize polystyrene, they compare the two producet for melting point and density. There...
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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...
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Kinetics Reactions: The Effect of a Catalyst
Students investigate the effects of a catalyst on an oxidation reaction. For this catalyst lesson plan, students use a catalyst, cobalt chloride for the oxidation reaction of potassium sodium tartrate with hydrogen peroxide. Students...
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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...
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Chemical Reactions and Energy
The details here give definitions about chemical reactions and the energy transfer in those reactions. The reactions given include general examples of catalysts, inhibitors, and other situations that affect the rate of production and...
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Equilibrium Practice
For this chemical reactions worksheet, students determine solubility product expressions, equilibrium constants, and equilibrium concentrations. This worksheet has 15 multiple choice questions and 3 problems to solve.
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Acids and Bases
In this acids and bases worksheet, young scholars review the characteristics of acids and bases, pK values, factors that change the rate of reactions, and catalysts. This worksheet has 17 multiple choice questions.
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Value Study Pencil -- Using Chuck Close as a Catalyst
Seventh graders examine the life of artist Chuck Close. They use markers to create an image to show a range of values. They develop a grid to represent these values.
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Value Study Marker -- Using Chuck Close as a Catalyst
Sixth graders examine the work of artist Chuck Close. They create their own image using markers that show a range of values. They develop a grid to replicate those values.
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Periodic Table of the Elements: Transition Metals
Students conduct an exothermic reaction to investigate the properties of a transition metal. In this periodic table instructional activity, students identify the transition elements and discuss their properties after watching a video....
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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 lesson, students work in groups to perform 5 tasks. They rotate each task and time how...
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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...
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Ester Lab
Students investigate making esters in the lab. In this ester lesson plan, students mix 3 organic acids with 3 alcohols and a catalyst to form 3 different esters. Students identify the odors of each ester and write the formulas for the...
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Kinetics Review Sheet
In this kinetics worksheet, students define 7 terms related to the energy of reactions, they find the average reaction rate in a reaction, they sketch an energy diagram for an endothermic reaction and they compare exothermic and...
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The Speed of Chemistry
In this rates of chemical reactions worksheet, students read about the various factors that influence the rate of chemical reactions such as surface area, concentration, temperature and catalysts. Students answer eight questions about...
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Enzyme Practice Sheet Key
For this enzyme worksheet, students solve 6 problems including questions about how enzymes work, graphs of the relationship between enzyme and substrate and structures of enzymes.
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Chemistry Crossword
In this chemical reactions instructional activity, students complete a crossword puzzle by figuring out the vocabulary words associated with 34 clues.
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Rate Determining Step and Catalyst Activity
Students work in groups to stuff as many envelopes as they can in 3-5 minutes. They use an assembly line method. Envelope stuffing is compared to a chemical reactions. The idea of catalyst is considered, and students determine a way to...
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Chemical Equations
In this chemical equations worksheet, students review chemical changes, define catalysts and coefficients, and review the five general types of reactions. This worksheet has 12 fill in the blank and 42 short answer questions.
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Article - "Designer Catalysts"
In this catalyst activity, students define catalyst and enzyme and explain how these work in a chemical reaction. Students calculate molar mass of a compound. This activity has 7 short answer questions and 2 problems to solve.
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Factors Affecting Reaction Rate
Students study the collision theory and explain how the rate of a chemical reaction is influenced by the reaction conditions. In this reactions lesson plan students divide into groups, discuss the factors that influence reaction rate...
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Enzymes
Tenth graders test their saliva for enzyme activity. In this enzyme lesson, 10th graders conduct an experiment to test the enzymatic activity of their saliva. They relate the lack of certain digestive enzymes with alcoholism.