What happens when chemical bonds break and form? Science scholars explore the movement of energy in a chemical system by watching a well-rounded video. The narrators illustrate exothermic and endothermic reactions in terms of temperature changes that occur and use diagrams that show changes in energy.

Concepts

exothermic reactions, endothermic reactions, thermodynamics, energy, chemical bonds, reactants, products, temperature changes

Show More Show Less

Additional Tags

science

Show More Show Less

Instructional Ideas

• Use the video to introduce the concepts of exothermic and endothermic reactions
• Have the class examine reactions closely and try to determine the energy needs of breaking and forming both ionic and covalent bonds

Classroom Considerations

• Pupils should have a strong foundation in bonding and chemical reactions for watching the video

Pros

• Resource introduces energy diagrams, a useful tool for interpreting energy flow during reactions
• You can print the video's transcript to help bolster student notes

Cons

• None

Common Core

SL.9-10.2