SCIENCE QUESTION FOR ALL

1. Intermolecular space in solid is
a) lower form liquid     b) lower form gas    c) lower is all state of matter d) All of the above   

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2. Normal body temperature of human body
a) 37^oC      b) 98.6⁰ F      c) 100K   d) both (a) and (b)          

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3. Pick the change that can be reversed from the following
a) Cutting of trees   b) Melting of ghee   c) Burning of candle     d) Blooming of flower 

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4. Which of the following nutrients is not present in milk?
a) Protein    b) Vitamin C      c) Calcium      d) Vitamin D     

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5. Which of the following is not a natural fibre?
a) Cotton      b) Jute        c) Nylon           d) Flax       

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6. Rajesh is running short of connecting wires. To complete an electric circuit, she may use a
a) glass bangle      b) thick thread     c) rubber pipe       d) steel spoon

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7. Which of the following activity does not involve use of water?
a)  Washing clothes         b) Bathing           C) Cleaning utensils     d) Drying wet clothes

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8.  Floods caused extensive damage to
a) crops                                b) property and human life      c) domestic animals     d)  all of the above   

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9.  What is not true about air?
a)  It makes the windmill rotate  b) It helps in the movements of aeroplanes  c) Birds can fly

 due to presence of air.   d)  It has no role in water cycle  _________________________________________________________________________________

10. Mountaineers carry oxygen cylinders with them because
a) there is no oxygen on high mountains  b) there is deficiency of oxygen on mountains at high altitude
c) oxygen is used for cooking     d) oxygen keeps them warm at low temperature 

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11. Which of the following components of air is present in the largest amount in the atmosphere?
a) Nitrogen     b) Oxygen       c) Water vapour          d) Carbon dioxide        

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12. Read the following sentences about photosynthesis:

(i) Sunlight, carbon dioxide, chlorophyll, and water are necessary.

(ii) Oxygen is absorbed.

(iii) Leaves carry out photosynthesis.

 (iv) Proteins are made during photosynthesis        

Choose the correct pair of sentences that are true to photosynthesis                                                                    

(a) (iii) and (iv)      b) (i) and (iii)   c) (ii) and (iv)      d) (i) and (iv)   

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13. Organisms which prepare food for themselves using simple naturally available raw materials are referred to as

a) heterotrophs     b) ) autotrophs      c) parasites           d) saprophytes       

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14. A solution changes the colour of turmeric indicator from yellow to red. The solution is

a) basic                   b) acidic                  c) neutral               d) either neutral or acidic

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15. Which of the following is a chemical change?
a) Twinkling of stars   b) Cooking of vegetables       c) Cutting of fruits       d) Boiling of water

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16. The correct symbol to represent the speed of an object is
a) 5 m/s-1            b) 5 mp                 c) 5 m/s                                d) 5 s/m 
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17. The coldest region on earth is the –

a)  polar region                  b) tropical region              c) temperate region    d) coastal region                 

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18. You are provided with the following materials

(i) Magnifying glass

(ii) Mirror

(iii) Stainless steel plate                                                                                                                                

(iv) Glass tumbler

Which of the above materials will you identify as transparent?

 (a) (i) and (ii)                (b) (i) and (iii)                   (c) (i) and (iv)                (d) (iii) and (iv)

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19. Which of the following materials is not lustrous?

 (a)Gold                        (b) Silver                           (c) Wood                       (d) Diamond

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20. Which of the following are not the liquid forms of water?

(i) Snow

(ii) Lake water

(iii) River water

(iv) Water vapour

 (v) Ice

 Choose the correct combination from the options below.

(a) (i), (iv) and (v)             (b) (i) and (ii)            (c) (ii) and (iii)               (d) (iv) only