Students will conduct two chemical reactions: endothermic and exothermic. They will see an animation that shows that it takes energy to break bonds and that energy is released when new bonds are formed, and use that animation to explain...

In this chemistry lab, learners investigate two types of reactions and answer questions relating to exothermic and endothermic reactions.

Given descriptions, diagrams, scenarios, or chemical symbols, students will calculate the energy changes and identify exothermic and endothermic reactions.

Explanation of Noble gases and of how atoms attempt to fill their outermost valence shells for stability.

Here's a full and understandable discussion of Reaction Rates and Equilibrium.

In this activity, students examine the size, mass, and growth rates for three species of fish. They interpolate and extrapolate from best-fit models. Students compare the growth rates of endothermic and exothermic animals.

This resource provides a physical reaction. Hydrous and anhydrous calcium chloride react with water to produce physical exothermic and endothermic reactions.

Explains what an endothermic reaction is and gives four everyday examples.

A demonstration to introduce energy changes during reactions, and to promote discussion regarding exothermic and endothermic reactions, enthalpy, spontaneity, system, and surroundings.

[Free Registration/Login may be required to access all resource tools.] Covers the role of energy in chemical reactions.

[Free Registration/Login may be required to access all resource tools.] Describes the law of conservation of energy and how energy is conserved in chemical reactions.

[Free Registration/Login may be required to access all resource tools.] Covers the law of conservation of energy and how energy is conserved in chemical reactions.

In this activity, students understand the relationship between enzyme reaction rates and various environmental factors such as pH and temperature. They recognize the metabolic differences between endotherms and exotherms. They generate...

This lesson focuses on heat energy changes in chemical reactions. Exothermic reactions transfer energy to the surroundings. Endothermic reactions take in energy from the surroundings. It also offers links to a video and a test.

Through critical thinking, students realize that spontaneous events happen in a certain order. This instructional activity presents an examination of the Second Law of Thermodynamics using a thought story, rubber band inquiry, discrepant...

Media-rich lesson in which students discover that it takes energy to break bonds, and that energy is released when bonds are formed during the process of dissolving. They also determine whether dissolving is either exothermic or...

Understand chemical reactions by learning about enthalpy and entropy.

Students will create an endothermic chemical reaction by making ice cream. They will observe, describe, and measure the ingredients. After making ice cream, students will measure the temperature of the ice cream and the ice/salt mixture....

Simple description and demonstration to illustrate the concept of Heat of solution!

[Free Registration/Login may be required to access all resource tools.] In this lesson, students study the difference between reactions that absorb versus release heat as well as how to measure this change in energy.

[Free Registration/Login may be required to access all resource tools.] Definition of activation energy and why all chemical reactions require it.

This article from the Florida State University provides an excellent explanation of WHY Hess's Law works and examples of how to use the law. Common mistakes are identified and explained.

Through interactive exercises and illustrated example problems, students learn about specific heat capacity and measuring the quantity of heat.

A collection of lessons that have students completing a design project where they construct, test, and modify a device that uses chemical processes to either release or absorb thermal energy. Site includes work samples, phenomena,...