Curated OER
Scientific Notation III: Linear vs Exponential
Learners after investigating examples of exponential growth students have an intuitive feel for the concept of exponential growth of a system.
Teach Engineering
Efficiency of a Water Heating System
Tired of waiting for hot water? Groups of three determine the efficiency of an electric water-heating device. They calculate the amount of energy it takes to heat the water and the theoretical amount of energy required to heat the water....
Pingry School
Kinetics of the Acid Decomposition of Thiosulfate
Several factors affect the rate of a chemical reaction including temperature, surface area, and concentration. Using an experimental approach, learners explore the effect concentration has on this rate while maintaining consistency with...
Curated OER
Scientific Notation III: Linear vs Exponential
High schoolers examine the differences in exponential growth and linear growth of a system. They interpret data on graphs and develop their own charts. They answer discussion questions as well.
Curated OER
Energy of Activation
High schoolers determine the activation energy of a chemical reaction.