Creative Chemistry
Energy Changes in Reactions
For this chemical bonds learning exercise, students determine how much energy is needed to break bonds. Students classify reactions as exothermic or endothermic and identify a reaction as reversible. This learning exercise has four...
Curated OER
Endothermic or Exothermic That Is the Question
Students conduct an experiment to determine what happens to heat energy during a chemical reaction. They examine an endothermic reaction by observing a chemical reactions.
Curated OER
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...
Curated OER
Chemistry Worksheet 6
In this chemistry worksheet, students calculate specific changes that take place with different chemical reactions. Students indicate whether the reactions are endothermic or exothermic and spontaneous or nonspontaneous.
Curated OER
Role of Energy in Reactions
In this energy worksheet, students determine the enthalpy of exothermic and endothermic reactions. This worksheet has 1 fill in the blank and 4 short answer questions.
Curated OER
Physical vs. Chemical
In this physical vs. chemical change worksheet, students answer 10 questions about identifying chemical and physical changes. They identify exothermic and endothermic reactions and the parts of a chemical equation. Students answer 1...
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Equilibrium, Enthalpy and Entropy
In this chemical reactions worksheet, students determine what is true about a system at equilibrium and give examples of macroscopic properties. Students determine minimum enthalpy and maximum entropy for reactions. This worksheet has 2...
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Kinetics and Equilibrium
For this kinetics and equilibrium worksheet, students use the diagram to answer the questions as it relates to endothermic or exothermic reactions. Students indicate the result in the reaction rate as speeding up or slowing down.
Curated OER
Learning Outcomes
In this science instructional activity, students explore the learning outcomes for a unit on chemical reactions. Students define 60 vocabulary words and answer a list of questions for each topic.
Purdue University
Can You Design a Hot or Cold Pack?
You're getting warmer. Groups conduct an experiment to determine which of four chemicals are in hot/cold packs. They learn about exothermic and endothermic reactions and use this knowledge to design a hot/cold pack that is small enough...
Chemistry Collective
Virtual Lab: Temperature and the Solubility of Salts
Can your scholars solve the mystery of why salts dissolve? A virtual workbench allows them to experiment with temperature and solubility with no solution prep and no post-lab clean up! Users determine the solubility of a variety of...
Curated OER
Heat Loss and Gain in Physical Changes and Chemical Reactions
Young scholars compare and contrast exothermic and endothermic reactions. In this chemistry lesson, students perform experiments to determine whether heat was released or absorbed in a reaction. They share their observations in class.
NASA
Making Oxygen and Carbon Dioxide
Some like it hot! Scholars observe both exothermic and endothermic reactions as part of the carbon dioxide oxygen cycle. First, scientists demonstrate (or watch) a chemical reaction to create pure oxygen using fire for...
Next Generation Science Storylines
Why Do Some Things Get Colder (or Hotter) When They React?
Some reactions absorb heat while others release it. Young scholars investigate both types of reactions in a 12-lesson unit. Each lesson presents a lab investigation that monitors temperature and considers the types of reactions taking...
Curated OER
Interpreting Reaction Coordinates
In this reaction coordinates worksheet, students are given a diagram of the reaction coordinate for a reversible catalyzed and uncatalyzed reaction. Students answer eighteen questions related to the diagram.
Curated OER
Reaction Rates and Equilibrium Worksheet
In this equilibrium worksheet, students solve 8 problems to find the equilibrium constants and reaction rates of given equations.
Curated OER
AP Chemistry-Thermochemistry
In this thermochemistry activity, students answer twenty multiple choice questions about heat, enthalpy changes, thermal, mechanical and electrical energy and the laws of thermodynamics.
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Chemical Equations
In this chemical equations worksheet, high schoolers complete a paragraph about chemical equations by filling in 17 terms from a word list.
Curated OER
Chemical Equations
In this chemical equations worksheet, students complete a paragraph by filling in the 17 terms associated with chemical equations.
Curated OER
Temperature and Keq
The presentation offers a set of three problems related to temperature and equilibrium reactions. It walks through solving each, reminding pupils how to figure for the forward and reverse rates.
Curated OER
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...
Normal Community High School
Chemical Equations
Viewers learn how to identify the substances in a chemical reaction, how to balance it, and the different types of chemical reactions by watching a presentation that also includes a review of monomers and polymers. The presentation...
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...
Curated OER
Chemistry Equilibrium Worksheet
This worksheet focuses on writing equilibrium constants. Students work to determine the direction of reactions, concentrations of different substances, and equilibrium constants.