Science of Energy Efficiency – Investigating Energy Efficiency Lab – Teacher

Summary

Students measure the electrical energy input and thermal energy output of a heating device to calculate efficiency and explain why no device reaches 100%. This teacher guide walks through setup, safety, materials, and a class data-sharing structure that lets groups compare efficiency results across trials. Works well in a physics, earth science, or APES classroom with access to a Kill-a-Watt meter and basic lab equipment.