Webquest - Digestive System

From http://www.uen.org/utahlink/activities/view_activity.cgi?activity_id=3045
Digestive System Facts
When you take a bite of food, your mouth immediately begins the process of digestion.

1.About how much food does the average male eat in their lifetime?


What is Spit?
An assembly line puts things together. Our digestive system is like a disassembly line--it takes food apart and breaks it down into parts that our bodies can use.

1.How much saliva (spit) do you produce in a day?
2.What is saliva made up of?

Yuckiest Site on the Internet

1.Why does your stomach gurgle?



Yuckiest Site on the Internet

1.What is vomit?
2.Why do we vomit?
3.How do we vomit?
4.Why is vomit green?

Why do we Poop?
If feces do not move quickly enough through the large intestine, then more water than usual is removed from the feces. This makes the feces harder than usual, and it may be difficult to expel the feces through the anus. This is called constipation. Diarrhea is just the opposite. Feces move too quickly through the large intestine and not enough water is removed.

1.Answer the 4 important questions at this site: Why do we poop?
2.What is poop made of?
3.Why does poop smell?
4.How much do I poop?

The Real Deal on the Digestive System
The liver regulates the levels of vitamins and minerals in the blood by storing them until they are needed.

1.When you swallow, what keeps food from going down your windpipe?
2.What letter is your stomach shaped like?
3.What might make a person throw up? In other words, why would a stomach empty out its contents?
4.About how big around and long is the small intestine?
5.List the important functions of your liver.
6.About how big around and long is your large intestine?
7.What does the amount of time that feces stay in the large intesting depend on?
8.From the picture on this page, what is the normal final resting place for feces?
9.What can you do to keep your digestive system in good shape?

Why do I Burp?
Every time you eat a meal, you swallow about 9/10ths of a pint of air.

1.Explain what a burp is.
2.Explain what a fart is. (You know, a normal part of the digestive system).

From http://bghs.d214.org/TeachersProjectSite/DigestiveSystemWeb_Roti.htm


http://www.constipationadvice.co.uk/constipation/digestive_system.html


Click on the food and bring it to the mouth. Record duration of time your food stays in each part of your digestive system:



Mouth:________



Esophagus: ________



Stomach: ________



Small Intestine: ________



Large Intestine: ________



Rectum: ________



Anus: ________



How long is your digestive system?_____________

http://kitses.com/animation/digestion.html

Click on the ice cream…what nutrients does it contain?

Click on the ZOOM IN of the mouth. What action takes place?

Click on the ZOOM IN of the stomach. What action takes place?

Now you are in the small intestine (it is made of TWO PARTS, the DUODENUM and the ILEUM). You do not need to know this…but go ahead and click on the close up of each.

What is left behind after leaving the small intestine?

Click on the ZOOM IN of the colon (large intestine)…what happens here?

What is your LAST STOP on the digestion pathway? ____________

Okay…I know you CANNOT RESIST…click on the ZOOM IN on the anus!

Electromagnet

http://www.youtube.com/watch?v=emlzh9XXWgQ
http://www.youtube.com/watch?v=nPjAueJGdzA