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DE Science Elementary

DE Science Elementary. “5-Minute Prep” for Human Body Systems of the Body Digestive. Digestive System – The Big Ideas. The digestive system breaks down food for energy and nutrients.

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DE Science Elementary

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  1. DE Science Elementary “5-Minute Prep” forHuman BodySystems of the Body Digestive

  2. Digestive System – The Big Ideas • The digestive system breaks down food for energy and nutrients. • The mouth, esophagus, stomach, small intestine and large intestine are the major parts of the digestive system. • Food is chewed and mixes with saliva in the mouth which begins the process of digestion. • Food and liquid travel from the mouth through the esophagus and into the stomach. • Through churning and mixing with enzymes food is broken down in the stomach.

  3. Digestive System – Prior Knowledge Students will have knowledge of some systems of the body prior to this study. It will be helpful for students to use the FUN-damental to review the Digestive System. It will also help if they are able to: • Explain that the body is made up of systems. • Name some parts of the human body.

  4. Digestive System – Common Misconceptions • Systems operate in isolation of each other. • Reality: No part of the human body works alone. Each system works in conjunction with the other parts of the body. • The stomach is located at or below the belt area. • Reality: The stomach is located at the bottom of the chest just below the esophagus.

  5. Digestive System – Using DE Science Content When you close this presentation, you can review the following recommended resources for the Digestive System. • Reading Passage: A Day in Your Digestive System • Reading Passage: Are You Nuts? • eBook: Getting Rid of Waste • Video Segment: The Digestive System Use the PowerPoint version of this presentation for hyperlinks to these resources or you can get to them through the browser or search feature.

  6. Digestive System – Instructional Ideas • Read the reading passage, Pizza Delivery! • Give each group of three students two jars. • One jar should contain grated potatoes and one jar should contain chopped potatoes. • Groups should place water in the jars, covering the potatoes, and place the lids on the jars. • Students can take turns shaking the jars for about 10-15 minutes. • Discuss what is happening with the potatoes and compare this to the breakdown of food in the stomach.

  7. Digestive System – Instructional Ideas • Watch the Video Segment, The Digestive System. • Then, place students into groups of 4. • Each group will explain the process of digestion by sitting in a circle and taking turns naming the steps. • The first student will start and tell a sentence about the first step. • The next student will add a sentence about the next step and so on. • At the end, have a class discussion about the steps to check for the accuracy of each group’s explanation.

  8. State Standards: If you wish to review your state standards regarding the Digestive System, click here to get to the curriculum standards search feature of DES. http://discoveryeducation.com/forward/curriculum.cfm You can click on any standard to see what resources are available to teach it. Additional Information: For additional content, check the Extend section within the concept.

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