Science

Mid Terminal Examination-2073

Subject: Science                                      Full Mark:100

Class: VI               Time: 3 Hrs.              Pass Mark:  40

1.     Choose the correct answers. [10]

        a)    Which one is an example of first class lever?

                i) Nut cracker          ii) see-saw           iii) Forceps

        b)    Which one is an example of third class lever?

                i) Pliers            ii) our own arm  iii)Lemon squeezer

        c)    Which of the following is the major source of heat on earth?

                i) The moon ii) The sun   iii) Fire

        d)    Which of the following is the CGS unit of heat?

                i) Joule           ii) Kelvin     iii) Calories

        e)    The main constituent of air is ……….

                i) Nitrogen     ii) Argon     iii) Oxygen

        f)     Which of the gas is dry ice?

                i) Nitrogen              i) Argon      iii) Oxygen

        g)    Which of the following metal is found in liquid state?    

                i) iodine         ii)sodium    iii)mercury

        h)    Which one gets rusted quickly when exposed to air?

                i) iron            ii) copper    iii) gold

        i)     Which metal is called noble metal?

               i) iron            ii) gold        iii)zinc

        j)     The study of weather is called

                i) climatology          ii) meteorology    

                iii) humidity

2.     Fill in the blanks. [6X1=6]]

a)     The simple machine changes the direction of …………..

b)    Heat energy can be generated by the burning of ………….

c)     …………. Makes 78% of air.

d)    Mostly metal are found in ……… state.

e)     Plant cell stores water and minerals in …….

f)      The amount of water in air is called ……….

3.     Write ‘T’ for true and ‘F’ for false in the given statements. [6]

a)     An inclined plane has two wheels.

b)    Scissors is an example of second class lever.

c)     Air is a compound.

d)    Diamond is the softest substances.

e)     A plant cell has chloroplast.

f)      Animal cell does not have cell membrane.

4.       Match the following:    [5]

          Diamond              liquid metal

          Iodine                   soft metal

          Mercury               non metal

          Iron                                wrapping foil

          Aluminum            hardest substances

5.     Name any two.              [4]

        Metalloid,  Wedge,  Types of weather,  Element

6.     Give reasons.                 [10]

a)  The tight metal lid of a bottle can be opened easily by putting it in warm water for some time.

b) When we put iron nails in water, they get rusted.

c)  Germanium is called a metalloid.

d) Why is cell called building block of life?

e)  Water cycle would not exist in absence of the sun.

                  Group “A” [Physics]

1.     What is a simple machine? Write two uses of simple machine.[3]

2.     Mention the types of lever with an example.[3]

3.     Give three examples of wheel and axle.[3]

4.     Define heat and give its SI unit.[2]

5.     Write any three uses of heat.[3]

6.     Name any two sources of heat.[2]

                       

              Group “B” [Chemistry]

7.     What is atmosphere? Write down two properties of air.[3]

8.     Write down any three uses of air.[3]

9.     What is acid rain? What is its cause?[2]

10.      What are noble gases? Give examples.[2]

11.      What are metals? Give two examples.[2]

12.      What are Alloys? Give two examples.[2]

13.      Write two uses of non-metals.[2]

14.      Write two differences between Ductility and Mallebility.

                                     

                             Group “C” [Biology]

15.      Draw a well labeled diagram of plant cell.[3]

16.      Write the difference between plant cell and animal cell.[2]

17.      Which cell contains plastids? Write its types?[3]

18.      What are the important functions of cell? Any two. [2]

             

              Group “D” [Astronomy and geology]

19.      What is weather and climate?[2]

20.      Write down three factors affecting weather.[3]

21.      Write types of weather.[2]

22.      What is relative humidity?[1]

             

              Group “E” [Environment]

23.      Write three important of sustainable development.

24.      What type of waste can be used to make compost fertilizer?[2]

25.      Why should development and conservation activities go hand in hand?[2]

*Best of Luck*