Effect of Concentration of the Reactants

How quickly do enzymatic reactions occur? Assist the class as they examine heat and pH change to determine the rate of chemical reactions using catalase as an enzyme. Watch them "glow" with excitement!

If your pupils think a catalyst is a list of their cats, then this might be the lesson for you! Young chemists study the effect of temperature, catalysts, concentration, and particle size on reaction rates during four different...

If you need a variety of questions for reactions and rate calculations, this resource is for you. Inspire your high schoolers to manipulate values and equations to fit the questions. The word problems are quite involved and require young...

In this rate of chemical reactions worksheet, high schoolers experiment with different concentrations and volumes of hydrochloric acid mixed with magnesium. They measure the rates of the reactions and analyze their results from a graph...

Show your classes the science behind rates of reactions with a presentation that explains factors that affect the rate, activation energies, exothermic and endothermic processes, and the proportionality of the product and reactant rates. 

Students investigate the reaction rate of iodine and soluble starch. In this rates of chemical reactions lesson plan, students study the effects of varying concentrations of reactants and varying temperatures of reactants on the reaction...

Students create predictions on what they believe happen to reaction rates when temperature is raised. They use hot, cold, and room temperature water for this experiment and observe the differences. They graph their observations and...

Do animals breathe faster when given more oxygen or more carbon dioxide? Young scientists observe the respiration rates of locusts under a variety of gas concentrations to answer that very question. They collect data, analyze the...

Students complete an experiment with Alka-Seltzer and reaction rates. They control the rate in which gases are allowed to escape. They test their predictions and observe what happens during the experiment.

Students observe demonstrations to show factors that affect rates of chemical reactions. In this rates of chemical reactions activity, students investigate how catalysts, reactant concentrations, temperature and surface area affect the...