The Digestive System

The Digestive System

Walk-In Take out notebook, pencil, agenda. Copy this weeks agenda. Walk-In Take out notebook, pencil. Answer at the back of your notebook in

sentences: How do you think your body processes food after it gets in your mouth? Answer Mouth and teeth chewing Throat- swallowing

Stomach digests food Other organs get rid of waste products Walk-In Take out notebook, folder, pencil box and agenda. Answer in sentences:

What is the difference between mechanical and chemical digestion? Answer Mechanical digestion breaks food down by grinding and chewing it. Chemical digestion breaks food

down by adding chemicals from the body to it, to make a liquid. Mechanical does not change the food, just makes it smaller. Chemical changes it by chemical reactions. Human Body Systems Remember cell organization? Cells Tissues

Organs Organ systems Our bodies are organized into 11 organ systems. We will study these:

Digestive Respiratory Circulatory Muscles Skeletal Nervous

The Digestive System Learning Target Students will learn the organs of the digestive system and their functions. Students will take notes on a slide guide as a whole group and using Chromebooks, and will color code a diagram.

In this activity, you will 1. Build background by answering some questions about the digestive system, to see what you may already know! 2. Label and color a diagram of the digestive organs. 3. Read and take notes about each part of the digestive system.

Part A What do you already know? 1.Listen to each question, then make your BEST GUESS and write down your answer on your sheet. 2.Then youll get to check you answers some of the info may amaze you! Part A Write your answer/best guess on

your sheet. 1. How long are your intestines? 2. How long are the intestines of a full grown horse? 3. How long does chewing take? 4. How long does swallowing take? 5. Food sloshes in the stomach. How long can this last? 6. How long does it take for food to move through the intestine? 7. Food drying up and hanging out in the large intestine can last how long?

8. How many pounds of peanut butter do Americans eat in a year? 9. How many pounds of chocolate do Americans eat in a year? 10. In your lifetime, your digestive system may handle how many tons of food? Answers! Check yours! 1. How long are your intestines? 25 feet

2. How long are the intestines of a full grown horse? 3. How long does chewing take? 4. How long does swallowing take? 89 feet 5-30 seconds 10 seconds

5. Food sloshes in the stomach. How long can this last? 3-4 hours 6. How long does it take for food to move through the intestine? 3 hours 7. Food drying up and hanging out in the large intestine can last how long? 18 hours to 2 days 8. How many pounds of peanut butter do Americans eat in a year? 700 million pounds 9. How many pounds of chocolate do Americans eat in a year? 2 billion pounds

10. In your lifetime, your digestive system may handle how many tons of Now to digest some food! As you eat your cracker, trace the path of the food through the digestive system in your diagram. Label the diagram as we go over each organ. Part B -Parts of the Digestive System

Label your diagram as it is indicated on your sheet. DO NOT COLOR UNTIL YOU ARE DONE WITH THE REST OF YOUR SHEET! Teeth/Mouth Esophagus Stomach Small Intestine Large Intestine Pancreas

Liver Gallbladder Rectum Part C - The Digestive System o Function: moves and breaks down food into smaller, usable nutrients. o Nutrients: the body needs to absorb different nutrients in order to stay healthy

o Proteins o Carbohydrates o Fats o Water o Vitamins o Minerals Video Clip Lets learn the function of the digestive organs

with this video preview. Color code the digestive system Color code your diagram by following the directions for what to color each organ. Day 2 Completing the slide guide Take notes from the following slides for Part D and Part E.

When done, use a LEFT SIDE page in your notebook. Trace your hand. List 5 digestive organs and their functions, one per finger. Part D -Types of Digestion o Chemical digestion Chemicals called enzymes in saliva and your stomach react with food and change it into a

different substance. o Mechanical digestion Teeth bite and chew food into smaller bits. The stomach squeezes it and mashes it. Part E Organs of the Digestive System o Read each slide carefully. o Write the function for each

part of the digestive system. o Write small! Mouth The teeth grind food into small bits. Saliva has chemical reactions with food to soften it, so it can be swallowed.

Esophagus Foodpipe that moves food from throat to stomach through peristalsis, the squeezing of the esophagus muscles. Stomach Organ that adds

hydrochloric acid, a chemical to break down the food into a Fun fact: The stomach is lined with a thick mucus so the stomach acid does not eat away at itself with the acid. paste. Small Intestine

Long tube, 22 feet long!, that has VILLI, small wiggly folds, to absorb nutrients as food moves through. Large Intestine Tube that absorbs water as the remains of food (wastes) move

through. Is larger in diameter than small intestine. Rectum End of digestive system, stores feces (solid waste, or poop!), until it exits from the ANUS.

Liver Organ that filters blood coming from digestive TRACT (system), and it Fun fact: Bile is a chemical that helps break down food.bile produces

Go Rattlers ! Pancreas Produces a chemical called insulin, which helps control the blood sugar level.

Gallbladder Stores bile made by the liver, releases bile to the small intestine. Gall bladder (green thing!)

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