Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Commercial heat packs (containing iron and water, or supersaturated sodium acetate) and cold packs (various ammonium salts) can be used to show exo- and endothermicity. Heat packs that contain iron ...

Students explore the concept that chemical reactions involve the breaking of bonds between atoms in the reactants, and the rearrangement and rebonding of these atoms to make the products. Students ...

Note: Contact The Fire Systems Group at [email protected] [email protected] (email BOTH) ahead of time to have the smoke alarms disabled during the class period when thermite will ...

IS HELL EXOTHERMIC, OR ENDOTHERMIC?<br><br><br> The following is an actual question given on University of Liverpool<br> chemistry finals. The answer by one student was so "profound" that<br> the ...

Hawbaker, a curriculum director with the nonprofit National Energy Education Development Project, presents an approachable collection of energy-related experiments. Color photographs show children ...