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Friday, 18 December 2020

Std 4 Science First Semester 2020

 

 

ENFANT INDIA INTERNATIONAL SCHOOL

                            Semester- 1st   2020-21                           

   Std : IV                               Subject- Science                                            M:M 40

                                                 Section I (20 marks)                 

1.    Write “True” or “False” against each statement-                                   5m

i.                   Food gives us energy to work.______________

ii.                 Roughage helps in bowel movements.________________

iii.              The lotus flower grows on land. ._________________

iv.              We should be kind towards animals.________________

v.                 Tap root has one main root and many side roots. ._________

2.    Fill in the blanks with the words given in the box-                                 5m

i.       Ducks have_________________ feet to swim in water. [ Webbed / Pointed]

ii.     The _________________plants have breathing roots.[ Mangrove / Desert ]

iii.  Tape grass is an_________________ plant. [ Aquatic / Terrestrial ]

iv.  A _________________grows into a new plant. [ Seed / flower ]

v.     The _________________is called kitchen of the plant. [ Leaf / Root ]

3.    Tick the correct answer-                                                                           5m

i.       The plant that grows on land is called-

a.     Terrestrial plant                      b. aquatic plants

ii.     Leaves of desert plant change into-

a.     Spines                                               b. stem

iii.  Salivary glands are found in

a.     Mouth                                                b. Stomach

iv.  Herbivorous animal eats only-

a.     Plant                                        b. other animals

v.     The stem keeps the plants-

a.     Straight                          `        b. Curved

4.    Match the following                                                                                       5m

              A                                                                B

                                           i.Lettuce                                                                    a. aquatic plant

                                         ii.lotus                                                                        b. tap root

                                      iii.Radish                                                                    c. salad leaves

                                      iv.Underground stem                                                  d conical shape

                                         v.Hilly area plant                                                      e. potato

                                                            

                                                              Section II ( 20 marks )

5.      Guess my name                                                                                        10m

 

i.       I have webbed feet and flat and broad beak. My name is _______________

ii.     I have a rat like body and a thick bushy tail. My name is_______________

iii.  I have padded feet and a hump on my beak. My name is_______________

iv.  I give you Oxygen gas to breath. My name is_______________

v.     I remove waste materials from your body. My name is_______________

vi.  The name of plant that grows in water.______________

vii.             The name of tiny holes present on leaves _______________

viii.         I am green and flat part of the leaf. I am ___________________

ix.  I am inside the fruit. I can grow a new plant.  I am____________________

x.     I am fleshy and tasty to eat. I also contain seeds. I am_________________

 

6.    Answer the following question-                                               2X5= 10m

  i. What are herbivores? Name them.

                                 ii.   What is adaptation?

                                 iii.   How do adaptations help animals?

                                   iv.    What are the main parts of plants?

                                  v.   Where do we get rubber from?