Gas

What a fart What that smell? How can your body make something so stinky? Parts also called flatus (say flay-tus) or intestinal (say in- tes-tuh-null) gas-are made of, well ,gas! When you eat you don,t swallow just your food you also swallow air which contains gases like nitrogen (say -ny truh-jen) and oxygen (say ahk-sih-jen) small amounts of these gases travel through your digestive system as you digest your food. Other gases like hydrogen (say hy-droh-jen) carbon doxide (say kar-bon dy-ahk-side the gas that makes soda fizzy) and methane (say meth-ain) are made when food is broken down in the large intestine. All of these gases in the digestive system have to escape somehow so they come out as farts! Gases are also for cars.