aman barthwal roll no 20 activities

ACTIVITY NUMBER  1 

1) To study the peristaltic movement in our food pipe (Oesophagus ) by using a Tyre tube .
 

OBJECTIVE : To study the Peristaltic Movement in food pipe .

MATERIAL REQUIRED  : 1)Tyre tube 
                                         2)Some wet soil 

PROCEDURE  : 
                         a)First take the Tyre tube and cut it from a point to make it a circular pipe   
                         b)Put the soil into the pipe from end of the Tyre
                         c)Then try to move the soil downward by the method of contraction and expansion  
                         d)Do the same method ,to move the soil downwards 

OBSERVATION  - We have observed that mud came out from the pipe  by the method of    contraction  and expansion is the same process by which the food that we take reaches to our stomach from the Buccal cavity and this process of contraction and expansion called peristaltic movement .

Activity 2 

  Objective : To study how label a diagram in correct manner
                      and learn all the organ of our digestive system

Material required : Diagram consisting all the part of our digestive system
   
Procedure : Label all the organs  at  their correct place and observe the    direction  of the arrows 

Conclusion : We conclude that our digestive system consist different organs :
                       1) Buccal cavity
                       2) Oesophagus
                       3) Liver
                       4) Stomach
                       5)Gall bladder
                       6) Pancreas
                       7)Large intestine
                       8 ) Small intestine
                       9)Appendix
                      10) Rectum
                      11) Anus
-  By this activity we also learn how to mark arrows  to label the diagram