1.  When you swallow the tube where the food enters is the ________.
      A  large intestine
      B  small intestine
      C  mouth
      D  esophagus

2.  The ________ system is the system that digests the food and removes it from the body.
      A  respiratory
      B  circulatory
      C  digestive
      D  excretory

3.  The first step in the process begins when  ________.
      A  the food leaves your body
      B  you take a bite of food
      C  the food gets to your stomach
      D  you were born

4.  the liquid in the mouth that makes chewed food wet ________.
      A  saliva
      B  enzyme
      C  apple juice
      D  water

5.  A chemical that helps your digestive system break food down into nutrients is ________.
      A  energy
      B  saliva
      C  digestion
      D  an enzyme

6.  Some nutrients give ________ that you need to play and do many, many other things every day.
      A  light
      B  saliva
      C  heat
      D  energy

7.  From the esophagus the food goes to the ________.
       A  stomach
      B  liver
      C  mouth
      D  large intestine

8.  Tiny tubes carry the saliva from the salivary glands to the ________.
      A  nose
      B  liver
      C  mouth
      D  esophagus

9.  The stomach is a baglike organ with ________ walls.
      A  muscular
      B  jelly like
      C  hard
      D  tiny

10.  The esophagus of an adult is about ________ centimeters long.
      A  92
      B  25
      C  12
      D  122