The purpose of this activity is to test the conductivity of various minerals with a simple electrical circuit and draw conclusions about which ones would be used in electronics.

Students perform the first steps that environmental engineers do to determine water quality - sampling and analysis. Student teams measure the electrical conductivity of four water samples using teacher-made LED conductivity testers and...

Great site explores the physics behind an electrical guitar. Outlines process for conducting an experiment on sound vibrations and provides animated GIF movies showing the first five modes of vibration.

Students gain an understanding of the difference between electrical conductors and insulators, and experience recognizing a conductor by its material properties. In a hands-on activity, students build a conductivity tester to determine...

An electromagnetic induction model that simulates an electric generator made from a conducting loop rotating in a uniform magnetic field and connected to an ammeter.

A brief article from The Great Idea Finder.

Nervous system messages are sent as electrical signals along the length of axons and dissolved salts are important for electrical signaling in cells. In this lesson students are introduced to this concept by creating an electrical...

In this lesson, students build series and parallel circuits and test their conductivity. Includes handouts with diagrams, and a vocabulary list with definitions.

French physician Guillaume Benjamin Amand Duchenne invented a device that electrically stimulates muscles. The apparatus gave him new insight into neuromuscular disorders, earned him the epitaph of "father of electrotherapeutics," and...

Learning about charge and forces of attraction will be keys to understanding electrostatics and the basis of this learning unit. Developing a greater understanding of charge and the charge model is necessary to understanding electricity.

A self-educated man with a brilliant mind, Michael Faraday was born in a hardscrabble neighborhood in London. Through the combination of insatiable curiosity and a powerful will to succeed, he transcended his austere beginnings to...