A complete overview of oxidation, reduction, and how electrons are moved in respiration. You could use this slide show to elaborate on the concept of harvesting stored energy, and to summarize the stages of aerobic and anaerobic metabolism.

Students will identify the sources and function of carbohydrates and fiber and apply appropriate food preparation techniques.

Students consider the USDA daily recommendations to create a "feed" product for middle schoolers. For this Health lesson, students learn about the ingredients in feed that is fed to livestock and apply the method to creating feed rations...

Students discuss how much fiber and water a person needs each day. They use beans soaked in water to show the benefits of water to the human body. They also learn the health benefits to eating healthy.

Learners explore and examine different types of feed used for livestock. They discuss types of feed, the need for energy and health, and create graphs of food compared to categories. Students organize data and complete worksheets on...

Students discover that the answers to some of society's waste and clean-up problems may be no further than the soil beneath their feet. They perform a Gram stain on the colonies to determine some of their characteristics.

Students learn about the organs and major functions of the digestive system, the roles of intestinal bacteria, and about diseases of the digestive system.

Learn how the enzymes in the digestive system help with the digestive process in the human body.

[Free Registration/Login may be required to access all resource tools.] Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive...

What do you know about your digestive system? This site feature factoids and more interesting information concerning this human body system. Trace the path of food from one end to the next.

Find out how bacteria in the digestive system works to digest food.

This site has a concise description of the digestive system with a nice diagram. The site also provides basic definitions of key parts.

Take a look inside the human body's digestive system. This site features diagrams of the digestive tract and each part is accompanied by labels and descriptions. Just select an organ by moving the mouse over its image.

In this interactive site, match the parts of the digestive system with their function.

At this site match parts of the Digestive system with their function in this challenging word search game.

This site has an interactive game that allows students to match key parts of the digestive system with their definition.

This lesson will describe how an enzyme is used to turn substrate into product. It is 4 of 5 in the series titled "Enzyme Function."

Pizza, milk shakes, and ice cream sundaes all contain dairy products, therefore they cannot be eaten by the majority of people around the world. Dairy products contain the sugar molecule lactose, and the majority of people on the planet...

This lesson focuses on the structures of carbohydrates, proteins, and lipids including defining terms, a brief discussion of what they do, and diagrams of each. It also provides a link to a test.

This lesson will describe the process of induced fit, and explain how enzymes use it during chemical reactions. It is 2 of 3 in the series titled "Induced Fit."

This lesson will describe the process of induced fit, and explain how enzymes use it during chemical reactions. It is 1 of 3 in the series titled "Induced Fit."

A brief glossary list of different parts of the digestive system.

This article, written for younger readers, explains cystic fibrosis (CF), an inherited disease that causes the body to produce mucus that's extremely thick and sticky.