Page 20 - Science Tour 3
P. 20

discover






               Digestion starts in the mouth. The teeth break food into smaller


               pieces. The tongue mixes it with the saliva. This makes it easier to

               swallow the food.








                                                                             mouth
                                                                      tongue






                                                                oesophagus






                                                                         stomach








                                          large                    small
                                          intestine                intestine





               The oesophagus is like a pipe that carries the food from the mouth


               to the stomach.


               The stomach is like a mixer that mashes the pieces of food and

               turns them into a thick liquid. The food then passes to the small


               intestine which is a long tube. There, the food is completely digested


               and is absorbed into the blood.




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