excretory system

Looks at digestion and the creation of poop and farts.

Understand how our bodies break down food into usable nutrients, and see how the process of digestion and excretion work.

Colorful illustrations and text show and describe how different animals and humans perform excretory functions.

Colorful illustrations and text show and describe how different animals and humans perform excretory functions.

Discusses human bodily functions, covering the digestive system, the absorption of food, what happens to food waste, and ways to keep the intestinal tract healthy, and includes a glossary and color illustrations.

Examines the digestive and excretory systems of the body and describes how food is broken down into molecules of nutrients that provide energy for the body and how the excretory system filters the blood and regulates the amount of salt and water in the body.

Describes the construction and functions of the various organs of the excretory system.

Explains the body's system for getting rid of harmful substances and recycling the useful chemicals into the bloodstream.