Why Lesson Planet?
Engage your physical science class with an exciting investigation on the rate of reactions! Introducing molecular motion, energy changes, and the breaking or forming of chemical bonds. Explain that temperature, surface area, concentration, and catalysts affect reaction rates. Finally, reinforce the concepts by having small groups test one of the factors on the effervescence of antacid tablets and the combination of vinegar with baking soda. This is a comprehensive and well-written resource.