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Lesson Plan
Beyond Benign

Exothermic and Endothermic Reactions

For Teachers 9th - 12th Standards
How can you tell the difference between endothermic and exothermic reactions? Chemistry scholars perform and observe two chemical reactions, measure the temperature throughout, then draw conclusions about changes in energy from their...
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Worksheet
Curated OER

Estimating Heat Changes during Reactions Using Bond Energies

For Students 9th - Higher Ed
For advanced chemists, this worksheet examines heat change during chemcial reactions. Alkanes are examined first. Learners calculate the energy released or needed during a reaction.
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Lesson Plan
Cornell University

Energy Changes in Chemical Reactions

For Teachers 6th - 8th Standards
The heat of solution measures how much thermal energy a dissolving substance consumes or gives off. The experiment demonstrates both endothermic and exothermic reactions. Scholars dissolve several substances, measure the temperature...
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Lesson Plan
University of Georgia

Endothermic and Exothermic Reactions

For Teachers 9th - 12th Standards
Equip your chemistry class with the tools to properly understand endothermic and exothermic reactions. Young chemists collect, analyze, and graph data to determine how the Law of Conservation of Matter is applied to chemical composition...
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Lesson Plan
Curated OER

Exothermic and Endothermic Reactions

For Teachers 9th - 12th
Students observe demonstrations of exothermic and endothermic reactions and determine the changes that take place in a chemical reaction. Students observe four demonstrations showing entropy, attraction of molecules due to polarity,...
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Activity
American Chemical Society

Exothermic, Endothermic, and Chemical Change

For Teachers 9th - 12th Standards
Scientists can't observe bonds breaking or forming, so how do they distinguish between exothermic and endothermic reactions? Young scholars complete two experiments to do just that. They monitor temperature change and calculate the...
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Lesson Plan
Curated OER

Thermodynamics: Enthalpy of Reaction and Hess Law

For Teachers 9th - 11th
In this thermodynamics worksheet, students calculate the change in enthalpy for several given chemical equations provided. Students specify if the reaction was endothermic or exothermic in nature.
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PPT
Curated OER

Understanding Chemical Reactions Lesson: Bonds and Energy

For Teachers 9th - 12th
What is required to get a chemical reaction? Chemistry learners find out by viewing this slide show. They will be able to compare endothermic and exothermic reactions, as well as draw energy level diagrams for each. A lab activity is...
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Lesson Plan
Virginia Department of Education

The Rate of a Chemical Reaction

For Teachers 9th - 12th Standards
If your pupils think a catalyst is a list of their cats, then this might be the lesson plan for you! Young chemists study the effect of temperature, catalysts, concentration, and particle size on reaction rates during four different...
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Lesson Plan
Massachusetts Institute of Technology

Lego Atoms and Molecules: Chemical Reactions

For Teachers 6th - 8th
Show young chemists what a chemical reaction looks like with two parts of a hands-on experiment. First, learners conduct a wet lab where they observe the reactants (baking soda and calcium chloride, with phenolsulfonphthalein) before,...
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Organizer
Curated OER

Bond Energies

For Students 9th - 12th
Before completing this worksheet, chemists are supposed read a portion of their textbook. Assign the chapter on bond energies, endothermic, and exothermic reactions. Then have your class answer the questions and fill in the data tables...
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Worksheet
Curated OER

Module 7 Revision Guide - Chemistry

For Students 9th - 12th
Two versions of this handout are provided, the second with more detailed information on the same topics. Chemistry aces survey chemical reactions, heat energy transferred, and the action of enzymes by reading this resource. You can...
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Worksheet
Curated OER

Classifying Chemical Reactions

For Students 6th - 12th
In this chemical reactions worksheet, students follow a flow chart to determine what type of reaction is occurring. Students then classify reactions and balance the equations. This worksheet has 2 short answer and 10 fill in the blank.
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PPT
Curated OER

Exothermic vs. Endothermic

For Teachers 10th
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...
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Worksheet
Curated OER

Chemical Reactions

For Students 7th - 12th
In this chemical reactions worksheet, students compare endothermic and exothermic reactions, closed and open systems, and reactants and products. Students review physical and chemical changes and how to balance equations. This worksheet...
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Worksheet
Curated OER

Endothermic and Exothermic Lab

For Students 9th - 12th
In this endothermic and exothermic reactions worksheet, students experiment with water and a salt of choice to determine if heat is absorbed or released in the reaction. Students take the temperature of their solution over a 2 minute...
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Lesson Plan
2
2
American Chemical Society

Energy Changes in Chemical Reactions

For Students 6th - 8th Standards
Some chemical reactions produce heat, but what is really going on? Lesson focuses on the concept of energy changes, both exothermic and endothermic. Scholars perform multiple experiments, hands-on activities, and view videos of the...
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PPT
Science Geek

Reaction Kinetics

For Students 10th - Higher Ed
Show your classes the science behind rates of reactions with a presentation that explains factors that affect the rate, activation energies, exothermic and endothermic processes, and the proportionality of the product and reactant rates. 
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Lesson Plan
Curated OER

Endothermic or Exothermic That Is the Question

For Teachers 7th - 8th
Pupils conduct an experiment to determine what happens to heat energy during a chemical reaction. They examine an endothermic reaction by observing a chemical reactions.
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Lesson Plan
2
2
American Chemical Society

Chemical Reactions and Engineering Design

For Teachers 6th - 8th Standards
Construction leads to habitat loss and local wildlife suffers. Scholars must build a reptile egg incubation device that meets many constraints. Various experiments help them discover the chemical reaction needed to reach the proper...
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Handout
National Institute of Open Schooling

Chemical Thermodynamics

For Students 9th - 12th Standards
All chemical reactions require energy. To explore thermodynamics, classes read and discuss its laws, exothermic and endothermic reactions, enthalpy in many forms, calculate enthalpy problems, and use Hess' Law to calculate enthalpy of a...
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Lesson Plan
2
2
American Chemical Society

Temperature Changes in Dissolving

For Students 6th - 8th Standards
Alia-Seltzer tablets cause a very obvious chemical change, but do they also cause a temperature change? Each class member explores hot/cold packs, discussing how these temperature changes occur. Groups then design and carry out their own...
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Worksheet
Curated OER

Energy Changes, Rates of Reactions, Nuclear Chemistry

For Students 9th - 12th
In this energy changes, rates of reactions and nuclear chemistry worksheet, students solve 14 problems to review concepts about endothermic and exothermic reactions, heat of combustion, heat of reactions, enthalpy, kinetic and potential...
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Lesson Plan
Curated OER

Heat and Thermodynamics

For Teachers 9th - 12th
This is actually a 10-day mini unit on thermal energy for your high school chemists. Every avenue is taken to get learners absorbed in heat: a pretest, a PowerPoint presentation, Internet exploration, demonstrations, lab activities, and...

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