National Institutes of Health
Niddk: Ulcerative Colitis
This resource provides information about ulcerative colitis.
Inner Body
Innerbody: Digestive System
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.
CK-12 Foundation
Ck 12: Life Science: Enzymes in the Digestive System
[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...
CK-12 Foundation
Ck 12: Life Science: Bacteria in the Digestive System
[Free Registration/Login may be required to access all resource tools.] Yogurt is a good source of calcium. Yogurt also contains active cultures of "good" bacteria. Foods that contain these beneficial bacteria are sometimes called...
CK-12 Foundation
Ck 12: Life Science: Human Digestive System
[Free Registration/Login may be required to access all resource tools.] Nutrients in the foods you eat are needed by the cells of your body. How do the nutrients in foods get to your body cells? What organs and processes break down the...
Sophia Learning
Sophia: Animals: Human Digestive System
An overview of the structure and function of the human digestive system.
Soft Schools
Soft Schools: Digestive System Quiz
Take this interactive, multiple-choice quiz over the human digestive system, then review your score and any missed questions at the end.
Soft Schools
Soft Schools: Nutrition Humans Quiz
Take this interactive, multiple-choice quiz over the science of human nutrition, then review your score and any missed questions at the end.
Soft Schools
Soft Schools: Food Nutrition Quiz
Take this interactive, multiple-choice quiz over food nutrition, then review your score and any missed questions at the end.
Discovery Education
Your Digestive System
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.
Better Lesson
Better Lesson: Mitochondria "The Powerhouse of the Cell"
In this lesson and lab activity, students learn about digestion and fermentation, and watch a demonstration of cellular respiration in yeast. Includes numerous real-world connections, e.g., how fermentation is used by humans.
Texas A&M University
Peer Curricula: Organ Systems
This site gives five instructional units on organ systems: bodily defenses, digestion, detoxification, gas exchange, and coordination and control. Each unit is broken down into sections: "why does it matter," "how we know," "what we...
Science Struck
Science Struck: Examples of Chemistry in Everyday Life
Gives examples of chemical interactions occurring in the human body, in the world around us, in foods, and in products we use.
TED Talks
Ted: Ted Ed: How Your Digestive System Works
Emma Bryce traces food's nine-meter-long, 40-hour journey through the remarkable digestive tract.
TED Talks
Ted: Ted Ed: What Causes Heartburn?
Rusha Modi details the causes and treatments of heartburn.
Read Works
Read Works: Where Does Food Go?
[Free Registration/Login Required] This informational text passage explains the process of food digestion. This passage is a stand-alone curricular piece that reinforces essential reading skills and strategies and establishes scaffolding...
North Central Regional Educational Laboratory
Ncrel: Human Body Systems Resource
What do you know about the different human body systems? This site features information on each of the different systems. Students and teachers will benefit from this comprehensive resource.
CK-12 Foundation
Ck 12: Life Science: Digestive System Organs
[Free Registration/Login may be required to access all resource tools.] The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine....
OpenSciEd
Open Sci Ed: Net Logo: Villi Absorption
This simulation explores the relationship between the amount of surface area in the small intestine and the rate at which it absorbs food particles into the circulatory system.
CK-12 Foundation
Ck 12: Fourth Grade Science: Life Science: The Digestive System
[Free Registration/Login may be required to access all resource tools.] Covers the major organs and general functions of the digestive system; the digestive functions of the mouth, esophagus, and stomach; and how digestion and absorption...
TED Talks
Ted: Ted Ed: What Causes Constipation?
Heba Shaheed takes us into the digestive system to find out what causes constipation.
Alabama Learning Exchange
Alex: A Trip Along the Alimentary Canal
Learners will prepare a digital presentation on the digestive organs, accessory structures, processes, digestive chemicals, and nutrients. This is a part of the unit on digestion and metabolism, and is performed at the beginning of the...
CK-12 Foundation
Ck 12: Biology: Digestive System Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the digestive system.
Khan Academy
Khan Academy: Pancreatitis and Pancreatic Cells
Practice for the MCAT by answering questions based on the given graphs about pancreatitis.