Page 1 - HA 2
P. 1

SAI ANGAN
                                        Class -3                                    Science

               Name:                                       Sec:                                Date:
                                          Skeletal System and Muscular System

               Q1. Choose the correct answers:

                   a)  This system protects the inner body parts from getting injured.
                       A.  Muscular system   B. Respiratory system    C. Skeletal system
                   b)  I am present throughout your body and helps to move and to lift objects. Who am I?
                       A.  Hands            B. Muscles     C. Legs
                   c)  The framework formed by the bones in our body is called
                       A.  Skeleton   B. Excretion         C. Blood
                   d)  Which of the following body part is not protected by the bone?
                       A.  Brain     B. Skin  C. Heart
                   e)  Which of the following statement is true?
                       A.  Bones do not support the body.
                       B.  There are 206 bones in human body.
                       C.  Bones are soft in nature.



               Q2. Choose from the words in the box and fill in the blanks:



                        contracting           206    strong  body          move          expanding

                                                                  protect


               There are ________ bones in the human skeleton. Our bones are very __________. The

               skeleton does three very important jobs. It helps us to ___________ around, it supports the
               _______________ and it _____________ the organs inside the body. Muscles allow the
               bones to move by __________________ and _______________.


               Q3. How are skeletal system and muscular system related to each other?

               ___________________________________________________________________________

               ___________________________________________________________________________

               ___________________________________________________________________________



               Q4. Rajat read that a baby has around 300  bones in its body but and adult has 206 bones.
               Explain Rajat, why there is a decrease in the number of bones in adult.

               ___________________________________________________________________________

               ___________________________________________________________________________
   1   2