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Subtopic: Electric Current

Resource Grade Level Media Type
AC / DC: What's the Difference?  

AC / DC: What's the Difference?
This animated essay from the American Experience Web site explains the difference between alternating and direct electric current and offers in-depth explanations about the role played by a battery, light bulb, wire, and generator.

6-12 HTML Interactive
Experimenting with a Lemon Battery  

Experimenting with a Lemon Battery
Can a fresh lemon power a digital clock? In this video segment adapted from ZOOM, the cast shows you how this can be done and, in the process, discover how kids can be a part of an electric circuit.

3-8 QuickTime Video
Exploring Conductivity: Kid Circuits  

Exploring Conductivity: Kid Circuits
In this video segment adapted from ZOOM, cast members join hands and become electron conductors to complete an electric circuit.

3-8 QuickTime Video
Ohm's Law  

Ohm's Law
In this interactive simulation of Ohm’s law, adapted from the University of Colorado's Physics Education Technology project, adjust the voltage and resistance in a circuit, and observe how this affects the flow of current.

3-12 Flash Interactive