American Chemical Society
Energy and Entropy of a Stretched Rubber Band
Stephen Perry invented and patented the modern rubber band in 1845. Young scientists put his discovery to work as they use rubber bands to observe entropy and enthalpy. They determine the change in free energy to figure out if it...
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Reaction rates and Equilibrium
Students listen to a lecture on the collision theory. They discuss the reactant and product changes during a chemical reaction. Students are taught the factors affecting reaction rates. They complete a lab on entropy, heat and free...
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2009 U. S. National Chemistry Olympiad - Local Section Exam
Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...
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CHM 152 Thermodynamics (Ch. 16)
In this thermodynamics instructional activity, students answer multiple choice questions about enthalpy and entropy, they calculate molar entropies and they determine equilibrium constants and free energy of reactions.
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Chemistry Module 5 - Specifications
While this resource does not provide problems for chemistry learners to solve, it outlines skills that they should have and concepts that they should grasp. Topics include thermodynamics, periodicity, redox equilibria, transition metals,...
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Being Spontaneous
In this spontaneous reactions learning exercise, students read about entropy, enthalpy and Gibbs free energy. They complete a table with reaction conditions and determine if the reaction is spontaneous or not. They solve three problems...
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WS 7.5 Thermodynamics Concepts and Vocabulary
In this thermodynamics worksheet, students fill in the blanks with terms related to specific heat, calorimetry, phase changes, enthalpy, entropy and free energy.
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Thermodynamics
Students investigate energy involved for bonds to form and break. For this thermodynamics lesson plan, students experiment with chemical reactions to observe endothermic and exothermic reactions, they explore entropy and the effects of...
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Free Energy Formula
In this chemical reaction worksheet, students use the free energy formula to determine if reactions are spontaneous or not. This worksheet has 5 problems to solve.
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2001 U.S. National Chemistry Olympiad National Exam Part II
Only eight problems are on this competitive national chemistry exam. It required the balancing of chemical equations, solving stoichiometry questions, and more. This is part two of three of the national exam. Also available is a local...
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Gibbs Free Energy
In this chemistry activity, students solve 2 problems on Gibbs free energy. They calculate the standard free energy of formation for given reactions.
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Summary of Organic Reaction Mechanisms Needed for AS Chemistry
Advanced chemistry courses typically cover organic reactions. On this reference sheet, the five types of organic reaction mechanisms are explained and an example is shown. For each, there is also a diagram of the chemical reaction that...
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Metabolism and Enzymes
Sketch the ATP cycle, label a diagram of the catalytic enzyme cycle, and write short answers to questions about the enzymes involved in human metabolism. This worksheet puts AP biology learners to the test. Assign it as a review homework...
Philadelphia Museum of Art
Physics at the Art Museum: Kinetic Energy, Potential Energy, and Work
Connect science, math, and art for a true interdisciplinary lesson! Learners explore simple machines in art. Through analysis with a physics app, they identify positions of kinetic and potential energy and make conclusions about work.
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Metals and Hydrogen Cars: Chemistry 10-12
Students investigate which metal is best to use as storage material in hydrogen cars. In this chemistry lesson plan, students differentiate endothermic and exothermic reactions. They write a reflection paragraph about what they learned...
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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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Entropy and Free Energy
In this entropy worksheet, students define entropy and determine if reactions are exothermic or would occur spontaneously. This worksheet has 10 problems to solve.
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Review Set
The topics covered in these multiple choice questions are about atomic structure and bonding, state configurations, pressure and solution concentration, and energy graphs. This is a midterm review which could be used with the whole...
Texas State Energy Conservation Office
Investigation: Making a PV Cell
Rise and shine! Class members collaborate to construct a photovoltaic solar cell with two semiconductor layers, as guided by this fabulous lab sheet. They test its output with an ammeter or galvanometer.
Biology Junction
Photosynthesis: Energy and Life
All life requires energy ... and the connection between energy and plant life typically requires photosynthesis. Scholars explore photosynthesis in depth from ATP/ADP through the Calvin cycle. A helpful presentation highlights concepts...
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Capturing Renewable Energy
Students watch a video segment on the engineering design process, then design a storage system for renewable energy. Students brainstorm and research ways in which renewable energies such as solar and wind power can be stored.
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Capturing Renewable Energy
Students watch a video segment on the engineering design process, then design a storage system for renewable energy. Students brainstorm and research ways in which renewable energies such as solar and wind power can be stored.
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Potential Energy Diagrams
In this reactions worksheet, students use graphs showing reaction progress to determine if the reaction is exothermic or endothermic, the activation energy, and the enthalpy of change. This worksheet has 1 graph, 7 short answer, and 16...
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Reaction Kinetics
In this chemical reactions worksheet, students determine the reaction rate for various reactions, write balanced equations, create graphs showing the reaction over time, and calculate the activation energy and potential energy. This...