An alternative to the "Structure of the Digestive System" activity would be to have separate cells for each part of the digestive system, rather than one large diagram. In this activity, students will create a spider map identifying and defining the functions of each organ in the digestive system. Sometimes it can be helpful to have each organ isolated in order to focus in on what it does.
|Mouth||Food enters the alimentary canal through the mouth. It is chewed by teeth which break food down into smaller pieces. The food is mixed with saliva that contains enzymes.|
|Esophagus||The fibromuscular tube connecting the mouth to the stomach is called the esophagus. Food is pushed down using a wave-like muscular motion called peristalsis.|
|Stomach||The stomach is the muscular organ where food is mixed with gastric juices. Gastric juice has a low pH, meaning it is acidic, and is used to help digest food and kill potentially harmful bacteria.|
|Small Intestines||The small intestines are made up of three parts: the duodenum, the jejunum, and the ilium. Here, food is mixed with enzymes and bile. The enzymes speed up the digestion process. Nutrients are then absorbed into the bloodstream.|
|Large Intestines||The large intestines are made up of two parts: the colon and the rectum. In the colon, water is reabsorbed from the food. Feces are stored in the rectum until they are ready to be passed.|
|Anus||Feces leave the alimentary canal through the anus.|
Grade Level 6-12
Difficulty Level 3 (Developing to Mastery)
Type of Assignment Individual
(These instructions are completely customizable. After clicking "Use This Assignment With My Students", update the instructions on the Edit Tab of the assignment.)
Create a spider map that identifies and describes the different organs in the digestive system.
(You can also create your own on Quick Rubric.)
All the labels are correct.
Most of the labels are correct.
Some of the labels are correct.
All the functions are correct with no grammar or spelling mistakes.
Most of the functions are correct with some grammar and spelling mistakes.
Some of the functions are correct with many grammar and spelling mistakes.
Evidence of Effort
Work is well written and carefully thought out.
Work shows some evidence of effort.
Work shows little evidence of any effort.
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