Students participate in this program that heightens their awareness and curiosity of nature as well as their sense of adventure and exploring new surroundings. They identify and choose an object from nature after exploring it with other...

Learners move to music and study bones and their purpose. When the music plays slow, gentle sounds the students have NO bones and their bodies are like Jello or an egg that has been cracked open on the floor . When the music changes...

Students study and learn to use keyboard shortcuts. In this computer usage lesson, students learn to keyboard shortcuts to use in Windows programs. Students practice using the shortcuts and may come up with their own as an extension.

Students discover different types of energy. In this energy source lesson students compare different types of energy, renewable and nonrenewable. Students answer questions about the different types of energy and their impact on the...

Young scholars investigate and apply properties of math. In this algebra and physics lesson, students define important vocabulary words to create a basic understanding of keywords. They perform experiments using concepts of electricity...

Students study laboratory protocol for hemagglutination experiments.

Students learn what the Kyoto Protocol is and examine the decision of the United States to not sign the agreement.

Students use the Internet to reserch the effects of climate change. Using that information, they relate those effects to specific items in the environment. They discover how climate changes affect their lives now and in the future.

[Free Registration/Login may be required to access all resource tools.] Describes the difference between direct current and alternating current.

Alternating current behaves differently, depending on what components are in a circuit.

This lesson focuses on Mains Electricity and Alternating Current. Electrical supplies can be direct current (DC) or alternating current (AC). The UK mains electricity supply is about 230V at 50 Hz. It explains the difference between AC...

Alternating current, defined and illustrated.

This site outlines a lab dealing with Alternating Current Series Circuit. It includes graphs and formulas, and a list of questions associated with the lab.

This site provides a brief explanation of what an AC current is.

Article explores direct current circuits, alternating current circuits, and the nervous system.

Explains what alternating current and direct current are and what they are used for.

[Free Registration/Login may be required to access all resource tools.] Defines electric current and relates electric current to different materials (insulators and conductors).

A summation of the War of the Currents featuring Nikola Tesla and Thomas Edison against a backdrop of The Columbian Exposition and an execution.

A general summary of electrical resistance including a comparison of AC and DC current.

The Canada Science and Technology Museum answers some of the most common questions about electricity. For example, get the definition of electricity, the difference between alternating and direct currents, and learn how a fuse works.

Explains electric current, how it produces heat, and the difference between a direct current and an alternating current.

Illustration showing the difference between a direct current and an alternating current.

One-page profile of influential innovator, George Westinghouse, Jr., whose vision and ideas helped to increase the safety of the railroad system in America. His experimentation with electricity also had a huge impact on the power...

This lesson focuses on Electrical circuits including standard symbols for electrical components, a list of components and what they do, a discussion of various types of resistors, and alternating current and direct current. Links to a...