Definitions of various forms of energy are presented along with a brief scientific history of energy related concepts.

This site is from Michigan State University's Elementary Physics II class and details equipotential lines. The site displays maps and diagrams as well as formulas and rules for these types of lines.

A teacher lesson plan which could be easily converted into an idea for a student project or presentation. This page describes activities in which the interconversion of chemical and electrical energy are investigated. Complete activity...

A rather mathematical explanation of a capacitor. Gives all the appropriate formulae, with many hotwords for further info.

More than a dry series of facts about Ohm's life, this page from the University of St. Andrews provides interesting anecdotal accounts which reveal the personality behind the man. Thorough, interesting and an abundance of facts. A great...

This site provides a small definition of Kirchhoff's Second Law as well as illustrations & animations that show how this law works.

A very detailed look at the element Gallium, a member of the Boron Group.

A very detailed look at the element Indium, a member of the Boron Group.

A very detailed look at the element Thallium, a member of the Boron Group.