Photovoltaic technology is compared and contrasted to the natural phenomenon of photosynthesis. The means by which photocells harness solar energy is described and explained.

Explains the differences between batteries and fuel cells. Other energy sources such as the piezoelectric effect and the thermoelectric generator are explained as well. The pros and cons of these energy sources are outlined.

Solar energy facts and information. Instructions on how to build solar devices.

A great description of the global scale circulation and heat energy. Discusses a single-cell model, a three-cell model, jet streams and more.

We encounter electrochemical cells in all facets of our everyday lives. Learn about the two types of electrochemical cells: galvanic, also called Voltaic, and electrolytic. Discusses the reactions that take place in cells, the formulas...

Frankenstein's electricity is out. In this activity, students help him find another source of energy using citrus fruit. Good for students who want to do their own projects or for class lessons.

Part of a materials science engineering course, a project through which students investigate the future of solar electricity by creating prototypes of solar cells. Students complete exercises in "project planning, analysis, design,...

In this activity, students measure the relationship between kinetic energy of photoelectrons and the frequency of the incident light.

In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.

This site details the process of photosynthesis. Photosynthesis is the process of the production of oxygen by plants and carbon dioxide by animals, both of which are needed for respiration purposes.

Take an interactive quiz over biochemistry and organic chemistry. After completing the quiz, check your score, and then revisit any incorrect question for further review.

Biofuels can provide energy without the reliance on environmentally harmful fossils fuels, but scientists are still searching for a plentiful source. Craig A. Kohn demonstrates how cellulose, the naturally abundant tough walls of plant...

Article presents an in-depth overview of oxidative phosphorylation which provides most of the ready chemical energy (ATP) used by the cells in your body.

[Free Registration/Login may be required to access all resource tools.] Students take a look at glucose and ATP. They will be able to explain the structure of ATP and will learn how ATP is a source of energy for a cell.

This lab exercise exposes students to a potentially new alternative energy source-hydrogen gas. Student teams are given a hydrogen generator and an oxygen generator. They balance the chemical equation for the combustion of hydrogen gas...

Explains what the coenzymes NADH and FADH2 are and the roles they play in cellular energy production and respiration.

In this unit, students explore a variety of phenomena to figure out, "Why do things sometimes get damaged when they hit each other?" Student questions about the factors that result in a shattered cell phone screen lead them to...

This extremely detailed article begins with a basic introduction of photosynthetic processes and expands to more complex applications and related scientific ideas.

Reactions in cells must be regulated and one way to do this is using allosteric molecules. These regulators can activate enzymes or inhibit them. This tutorial explains exactly how allosteric regulation works using words, narration, and...

A great page for all around biochemistry and background. This version of the Bristol University site requires the CHIME plug-in to view the 3-D molecule. It is worth the time to download CHIME if you visit a lot of biochemistry or...

Great page for the general background and biochemistry of the molecule. This version of the Bristol University site offers a Java Applet version of the molecule that offers 3-D manipulation of the molecule. The CHIME version is better,...

This site from NASA provides The Space Place which gives a great explanation of energy sources for young readers using the space shuttle, cars, and our human body as examples.

This site is an article on, "Helios can fly higher than any other airplane! And it uses only the Sun's energy for fuel!"

[Free Registration/Login Required] This is a comprehensive, engaging overview of catabolic pathways that yield energy by oxidizing organic fuel. Students explore redox reactions, oxidation, reduction, and preview the stages of cellular...