Includes a clear introduction to the lab, student objectives, a full materials list with electrolyte options, and step-by-step procedures for setup, demonstration, and student work.
Power Up! Exploring Electrolytes Lab
Summary
Students build voltaic cells using copper and zinc electrodes, then test common electrolyte solutions including vinegar, salt water, sports drinks, and cola to measure voltage and power an LED diode. Groups contribute data to a shared class dataset to determine which electrolyte moves charge most effectively. The lab packet includes a teacher guide with answer key, a student guide with data tables, and an optional biology extension connecting battery chemistry to electrolytes in the human body. Designed for high school chemistry, physical science, or Earth and Environmental Science.
Activities
Lab - Student Guide
Walks students through a complete hands-on investigation of how batteries work.
Downloadables