1. Essential Question: How do major organ systems work together in living organisms?
GSES7L2b: Develop and use a conceptual model of how cells are organized into tissues, tissues into organs, organs into systems, and systems into organisms.
GSES7L2c: Construct an argument that systems of the body interasct with one another to carry out life processes.
Instructional Approach(s): Teacher reviews the essential question and the standards that align to the essential question

2. Digestive System

3. Role of the Digestive System
Series of organs that convert food into essential nutrients, and moves unwanted waste out
Instructional Approach(s): The teacher should present the information on the slide while the students record the role of the digestive system on their graphic organizer sheet

4. How does it do it?
Transition slide

5. Chewing Mechanical Digestion – Breaking down food into smaller pieces
Teeth are used to break food into smaller pieces
Instructional Approach(s): The teacher should present the information on the slide while the students record the important information about mechanical digestion on their graphic organizer sheet

6. Pipe connecting the mouth to the stomach (involuntary muscles)
Esophagus
Pipe connecting the mouth to the stomach (involuntary muscles)
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Esophagus on their graphic organizer sheet

7. Food is chemically broken down by acid to form paste called Chyme
Stomach
Food is chemically broken down by acid to form paste called Chyme
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Stomach on their graphic organizer sheet

8. Chemical Digestion
Food is converted (changed) into substances that can be absorbed by the body
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Chemical Digeston on their graphic organizer sheet

9. Small Intestine
Where the nutrients (glucose, protein, etc.) are absorbed into the bloodstream
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Small Intestine on their graphic organizer sheet

10. Large Intestine Pulls out water from left overs
Last portion called rectum
Anus is the opening at the end
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Large Intestine on their graphic organizer sheet

11. Instructional Approach(s): The teacher should use the image to illustrate the organs and steps of the digestive system.