[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.

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

This site from Siegen University contains brief information and a step-by-step photo display of burning magnesium. The information is very short but the pictures are definately worth checking out.

A step-by-step example of how to complete Hess's Law problems. This example includes all the manipulations that may be required for Hess's Law.

A collection of lessons that have middle schoolers 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,...

In this experiment, three reactions are performed in a sealed Ziploc bag so that they can be observed. Students identify whether physical or chemical change has taken place.

Learn about the process of germination in this hands-on science experiment. Includes full list of materials, procedures, and scientific explanation of why plants can survive in a variety of environments.

Demonstrate how soil absorbs radioactivity by simulating the absorption of the radioactive isotope from the Chernobyl disaster into the lichen of Scandinavia. Use a chart to figure out the half-life of the isotope.

Explore how life invades, colonizes and changes over time. Model a shallow underwater volcano to see what type of island forms, investigate seed dispersal methods and describe how wing size and shape determine which birds fly where.

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...

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