What is biogas and how is it made? After examining background information about the sources of biogas and biogas generators, class members follow the provided information and build a biogas generator that can be used in the...

What do Mike Tyson, Ellen DeGeneres, and Paul McCartney have in common? They're all famous vegetarians. Using the resource, scholars learn about the pros and cons of eating a vegetarian diet. They read a fascinating history of...

The parts of the digestive system and how they function are explained. An interactive diagram shows the location of each part of the system, and summarizes what each does. Disorders of the digestive system are also described.

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.

This comprehensive study guide covers the main terms and concepts needed for a unit on the digestive system.

Excellently detailed drawing (with labels) of the digestive system with an accompanying explanation of the digestive process. Includes a glossary and a blank label me print-out.

Information about the digestive system, why digestion is important, how food is digested, and how the process is controlled. Includes a diagram of the body parts involved.

Article explains the how the digestive system works, considering each step as food moves from the mouth, through the esophagus, into the stomach, and then into the small and large intestines. Select digestive disorders are also...

Describes the anatomy of a frog's digestive system and how the stages in the process of digestion. A comparison is made with the human digestive system.

Interesting illustrated resource discusses the parts of the digestive system, the stages of digestion, and more fun facts.

Provides information about the anatomy of the earthworm's digestive system and why the earthworm plays such an important role in soil health.

This resource discusses and defines the cause, symptoms and treatment of inflammatory bowel disease (IRB) or Crohn's Disease. The resource presents an image of the digestive system and additional sources.

The main focus here is on the comparative anatomy of animals raised for meat. Beware of the photographs, as they are dissection photos.

Page focuses on the processes involved in the generation of monosaccharides and their absorption into the digestive tract. Image shows the transport of glucose across the intestinal epithelium.

BioAnin presents 3-D labeled images of all of the major systems of the human body, for example, the digestive system and the endocrine system. The images are embedded in slideshows. The site also has interactive 3-D models that can be...

Read about your digestive system.

Wikipedia provides excellent resources and information on the gastrointestinal or digestive tract, including images and hyperlinked terms.

Have you ever eaten ice cream then started feeling really yucky? Kids with lactose intolerance have trouble digesting a type of sugar found in milk and other dairy foods. Learn what this condition is and how you can learn to live with it.

This site discusses the diet and digestion in all sorts of mammals, including herbivores, omnivores, and carnivores. Read about different kinds of animals and their different dietary preferences.

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

The Animal Diversity Web offers a very good description of teeth in the digestive process of mammals. Covers the variety of teeth and links to discussions on a variety of teeth issues.

A detailed, kid-friendly explanation of what happens when you move your bowels.

A KidsHealth explanation of what flatus is and some ways in which it is caused.

Describes the human stomach in terms of its structural components.