The Digestive System

by Kristin Petrie

Through engaging text, readers learn about the human body's digestive system, which turns the foods you eat into substances your body can use. This book explains how food moves through the digestive system. Readers learn that chewing breaks food into small pieces and helps saliva reach all of the food. The tongue's duties, which are to mix the food with saliva, position the food within the mouth, form food pieces into a bolus, and finally push the...

• Format: Library Binding
• Language: English
• ISBN: 159679710X
• ISBN13: 9781596797109
• Release Date: January 2006
• Publisher: Checkerboard Books
• Length: 32 Pages
• Weight: 0.55 lbs.
• Dimensions: 0.3" x 8.0" x 8.0"
• Age Range: 8 to 11 years
• Grade Range: Grades 3 to 6