1. Do Now: None Homework Agenda Video-man drinks drano
Mechanical vs. Chemical digestion
Digestion diagram
Objective
I can summarize the functions of the (DS)
I can identify the different types of digestion in each organ of DS
Do Now:
Do Now
 Pick up a digestive system diagram and label what you know!
Homework
None
Did you know? Mrs. Sanford is Available for Tutoring every Mon and Wed!

2. Do Now: none Homework Do Now Agenda Quizizz Video-digestion
Digestion vocabulary
Objective
I can summarize the functions of the digestive system
I can identify the different types of digestion in each organ of the digestive system
Do Now:
Homework
none
Do Now
 Pick up a digestive system vocabulary worksheet

3. The Digestive System

4. EWW!!! What is that?? http://www.youtube.com/watch?v=Uzl6M1YlU3w

5. Functions Digest the food we eat
Provides body with materials to grow and repair tissues. Provides energy for everything you do.

6. Chemical Digestion
When chemicals in our body take large molecules & break them down into nutrients our body can send through our blood
Saliva, stomach acid do this

7. Chemical Digestion Demo…
Put skittle in your mouth
DO NOT CHEW OR MOVE WITH TONGUE
*Remember what color you had 
After about 30 seconds take it out…this is chemical digestion. Your saliva has broken down the sugar molecules so that they can be absorbed into your blood

8. The physical breaking and crushing of food
Mechanical Digestion
The physical breaking and crushing of food
Teeth, tongue, movement of smooth muscle in peristalsis (squeezing of tubes to move/crush food) do this

9. Mechanical/Physical Digestion
Now Chew the skittle & move around with your tongue!
This is physical or mechanical digestion! Breaking the food down into smaller pieces by ripping, crushing, and tearing it.

10. Components Esophagus Stomach Small Intestine Large Intestine
Gall bladder
Liver
Pancreas

11. end

12. Teeth and mouth- Breaks food down into smaller pieces Salivary glands- produces saliva

13. Esophagus
the tube that connects your mouth and stomach

14. Stomach A stretchy bag that holds your food after you eat
Helps to break food into smaller pieces you can use for energy

15. Esophagus
Stomach

16. Small Intestine Tube that is 20 feet long.
Where nutrients is absorbed into the blood.
Food stays in your small intestine for 4 to 8 hours

17. Small Intestine

18. Large Intestine Tube that is 5 feet long
Gets waste from small intestine and Liquids are absorbed here
Waste stays for 10 to 12 hours

19. Large Intestine

20. Gall Bladder
Storage tank for bile (a greenish-yellow liquid) that helps your body break down and use fats
Located under your liver
Shaped like a pear

21. Gall Bladder

22. Liver Factory for antibodies and bile
Stores vitamins and sugars until your body needs them

23. Liver

24. Pancreas
Helps you digest food by breaking down sugars

25. Rectum- Final section of LI where waste is compressed into solid form Anus- Where waste is eliminated from the body.

26. You have a trap door called the epiglottis to cover your windpipe when you swallow.

27. Your homework… The Journal of a Hamburger
Write the process of mechanical digestion as it goes through the mouth, esophagus, stomach, small intestine, large intestine, and rectum.
Use information from the Magic School Bus to complete for tomorrow. (First column only!)

28. The Magic School Bus! Complete the diagram as your watching!

29. Healthy Habits
Eat foods that are high in fiber like fruits and vegetables

30. Drink plenty of water

31. Chew your food completely before you swallow

32. Avoid foods high in fat

33. Interesting Facts
Food is in your digestive system for about 24 hours

34. Your stomach stretches when you eat like a balloon being filled with air

35. Your stomach mashes your food the way a baker kneads dough for bread.