ist GRADE4 SCIENCE QUIZ Saima (2) (4) (1)SAIMA AWAIS.pptx

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1. QUIZ BMTL Girls Branch 78 A-1

2. Rules: The quiz comprises of THREE Rounds The First round is an Individual Round The Second Round is a Discussion Round The Third Round is a Visual Round It is necessary to answer EVERY question. The question cannot be passed to any other team. Only ONE answer will be considered as FINAL

3. RULES FOR ROUND 1 First round is an Individual Round It has 36 multiple Choice Questions Each question carries 2 marks . Each participant in the team will have to answer 2 questions . Participants are supposed to answer within 20 seconds .

4. Q1. A runner has _______ on his shoes to have a good grip? a. laces b. spots c. spikes

5. a. laces b. spots c. spikes Q1.A runner has______ on his shoes to have a good grip?

6. Q2 . Complete the sentence. When water is ........, it starts to change from a liquid to a solid . a. cooled down b. heated up c. boiled

7. Q2. Complete the following sentence When water is........, it starts to change from a liquid to a solid. a. cooled down b. heated up c. boiled

8. Q.3. A boy is sitting on a grassy slope. Which force stops him from sliding down? a. Weight b. Gravity c. Friction

9. Q.3. A boy is sitting on a grassy slope. Which force stops him from sliding down ? a. Weight b. Gravity c. Friction

10. Q4 . The process which is used to separate an insoluble solid from a liquid is called__________ a. filtration b. sieving c. dissolving

11. Q4.The process which is used to separate an insoluble solid from a liquid is called___________ : a. filtration b. sieving c. dissolving

12. Q5. When a solid dissolves what happens to the particles of the solid ? a. they change their colour b. they can be separated easily c. they seem to disappear

13. Q5. When a solid dissolves what happens to the particles of the solid? a. they change their colour b. they can be separated easily c. they seem to disappear

14. Q6. Which of the following pair is insoluble in water? a. chalk powder and d ry tea leaves b. salt and sugar c. none of the above

15. Q6. Which of the following pair is insoluble in water? a. chalk powder and dry tea leaves b. salt and sugar c. none of the above

16. Q7 . When ice is exposed to warm air it ? a. evaporates b. c ondenses c. none of the above

17. Q7. When ice is exposed to warm air it ? a. evaporates b. condenses c. none of the above

18. Q8. When liquid water is heated to 212˚F it…. a. condenses b. boils c. freezes

19. Q8. When liquid water is heated to 212˚F it…. a. condenses b. boils c. freezes

20. Q9. On which surface will a toy sledge travel the least distance ? Carpet Polished wood Ice

21. Q9. On which surface will a toy sledge travel the least distance? a. Carpet b. Polished wood c. Ice

22. Q10. Friction explains why all of the following things are possible , except for__________? Keeping corn in a pot of boiling water Keeping your shoe laces tied Being able to take a turn on a bicycle

23. Q10. Friction explains why all of the following things are possible except for_________? a. keeping a corn in a pot of boiling water b. keeping your shoe laces tied c. being able to take a turn on a bicycle

24. Q11. The foot wear with least amount of friction are_________? a. Hockey skates b. Baseball cleats c. Basketball sneakers

25. Q11. The foot wear with least amount of friction are? a. hockey skates b. baseball cleats c. basketball sneakers

26. Q12. Particles in Liquids……. a. move freely b. are tightly packed c. are loosely packed

27. Q12. Particles in Liquids……. a. move freely b. are tightly packed c. are loosely packed

28. Q13. How can you separate a mixture of sand and salt ? a. Mix with water, filter, and then evaporate b. Mix with water, evaporate and then filter c. Filter and then mix with water

29. Q13. How can you separate a mixture of sand and salt? a. mix with water, filter, and then evaporate b. mix with water, evaporate and then filter c. filter and then mix with water

30. Q14.Which of the following is an example of trying to increase friction ? a. oiling the door hinges.   b. spreading grit/sand on icy roads   c. waxing the underneath of skis

31. Q14.Which of the following is an example of trying to increase friction? a. oiling the door hinges.  b. spreading grit/sand on icy roads  c. waxing the underneath of skis

32. Q15. When you blow up a balloon, is it heavier or lighter than the deflated balloon ? a. heavier b. lighter c. they weigh the same

33. Q15. When you blow up a balloon, is it heavier or lighter than the deflated balloon? a. heavier b. lighter c. they weigh the same

34. Q16. Which of these is an irreversible change ? a. melting of candle wax b. b urning of a wick in the candle c. ice cream melting

35. Q16. Which of these is an irreversible change? a. melting of candle wax b. burning of a wick in the candle c. ice cream melting

36. Q17.Our hands have a lot of friction due to________? a. dryness of our skin b. latent heat of our hands c. ridges on our fingerprints

37. Q17. Our hands have lot of friction due to________? a. dryness of our skin b. latent heat of our hands c. ridges on our fingerprints

38. Q18. When you squeeze a sponge under water, what are the bubbles that escape ? a. pieces of sponge b. air coming from the spaces in the sponge c. water

39. Q18. When you squeeze a sponge under water, what are the bubbles that escape? a. pieces of sponge b. air coming from the spaces in the sponge c. water

40. Q19. Which of the following statement is true ? Friction is a force that…….. a. only occurs between solids b. only occurs on rough surfaces c. only occurs when surfaces are in contact with each other.

41. Q19. Which of the following statement is true? Friction is a force that…….. a. only occurs between solids b. only occurs on rough surfaces c. only occurs when surfaces are in contact with each other.

42. Q20.Which of the following is produced by friction? a. w ater b. heat c. cold

43. Q20.Which of the following is produced by friction? a. water b. heat c. cold

44. Q21 . 1 Litre =1000 ml or a. 500 ml b. 1000 cm c. 1000 cm 3

45. Q21. 1 Litre =1000 ml or a. 500 ml b. 1000 cm c. 1000 cm 3

46. Q22. In which state of matter would you find water at room temperature? a. solid b. liquid c. gas

47. Q22. In which state of matter would you find water at room temperature? a. solid b. liquid c. gas

48. Q23 . The force to move a container is greater on ? a. a smooth surface b. a rough surface c. a liquid surface

49. Q23. The force to move a container is greater on ? a. a smooth surface b. a rough surface c. a liquid surface

50. Q24 . If you were burning a candle, which of the following would be a reversible change ? a. The solid candle wax melts b. The liquid wax in the wick burns c. The flame produces smoke

51. Q24. If you were burning a candle, which of the following would be a reversible change? a. The solid candle wax melts b. The liquid wax in the wick burns c. The flame produces smoke

52. Q25 . What is the term used to describe the phase “ C hange of a liquid to a gas?” a. boiling b. condensation c. melting

53. Q25. What is the term used to describe the phase “Change of a liquid to a gas ?” a. boiling b. condensation c. melting

54. Q26. What happens when a saucepan of water is left on a burning stove? a. water boils and condenses b. water level remains the same c. water boils and evaporates

55. Q26. What happens when a saucepan of water is left on a burning stove? a. water boils and condenses b. water level remains the same c. water boils and evaporates

56. Q27. An example of non contact friction force is a. jogging b. ice-skating c. direct force

57. Q27. An example of non-contact friction force is? a. jogging b. ice-skating c. direct force

58. Q28. In a wind tunnel a truck should be designed in the shape of? a. a bird b. a fish c. a frog

59. Q28. In a wind tunnel truck should be designed in the shape of? a. a bird b. a fish c. a frog

60. Q29.Roller skates and skateboard wheels roll with minimal friction , thanks to……….? a. ball bearing b. pressurized oil c. graphite lubricant

61. Q29.Roller skates and skateboard wheels roll with minimal friction , thanks to? a . ball bearing b. graphite lubricant c. pressurized oil

62. Q30.If you poured oil on to a wooden surface, the friction would………. a. be reduced b. b e increased c. r emains the same

63. Q30.If you poured oil on to a wooden surface, the friction would……….. a. be reduced b. b e increased c. r emain the same

64. Q31. Which shape will take shorter time to reach at the bottom of the container, containing oil? a. torpedo b. cube c. rectangle

65. Q31. Which shape will take shorter time to reach at the bottom of the container, containing oil? a. torpedo b. cube c. rectangle

66. Q32. Which of the following substance, when mixed with water would make a solution? a. rice b. sand c. sugar

67. Q32. Which of the following substance, when mixed with water would make a solution? a. rice b. sand c. sugar

68. Q33. If you leave water in a glass and some molecules turn into a gas, the process would be called ... a. evaporation b. extinction c. s olidification

69. Q33. If you leave water in a glass and some molecules turn into a gas, the process would be called ... a. evaporation b. extinction c. solidification

70. Q34. Which term is used to describe the phase change of a solid into a liquid? a. freezing b. melting c. none of the Above

71. Q34. Which term is used to describe the phase change of a solid into a liquid? a. freezing b. melting c. none of the Above

72. Q35. How can you change burnt paper back into its original form ? a. cool it b. scrape off the soot c. you can't

73. Q35. How can you change burnt paper back into its original form? a. cool it b. scrape off the soot c. you can't

74. Q36. A parachute allows a person to glide in air because of …. a. higher air resistance b. less friction c. more gravity

75. Q36. A parachute allows a person to glide in air because of …. a. higher air resistance b. less friction c. more gravity

76. Q37. Which substance can dissolve completely in water ? a. sand b. flour c. s alt

77. Q37. Which substance can dissolve completely in water? a. sand b. flour c. salt

78. Q38. Air resistance would… a. stop you down at once b. stop down slowly c. be very magnetic

79. Q38. Air resistance would… a. stop you down at once b. stop down slowly c. be very magnetic

80. Q39. S katers slide on ice because: a. of low friction b. skates give a good grip c. up thrust is low

81. Q39. Skaters slide on ice because: a. of low friction b. skates give a good grip c. up thrust is low

82. Q40. Dissolved solids can be separated by the following process: a. filtration b. evaporation c. both

83. Q40. Dissolved solids can be separated by the following process: a. filtration b. evaporation c. both

84. Q41. To perform fair scientific experiments we need to keep: a. one variable different b. all variables different c. all variables same

85. Q41. To perform fair scientific experiments we need to keep: a. one variable different b. all variables different c. all variables same

86. Q42. Which of the following can reduce the friction on a road? a. rocks b. sand c. Water

87. Q42. Which of the following can reduce the friction on a road? a. rocks b. sand c. water

88. Round 2

89. Second Round Team Discussion Round Participants are supposed to answer within 40 seconds . Each Team will be asked one question only. Right answer carries 5 marks Wrong answer carries negative 5 marks

90. Q1. Ali went to buy a nylon rope to tie a sack but the shopkeeper suggested him to use a cotton rope for this purpose ?

91. The shop keeper suggested him to use a cotton rope instead of nylon rope to tie a sack with a good grip. Answer :

92. Q2. Which has more mass and why? A kilogram of feathers A kilogram of gold

93. The mass of a kilogram of feathers and a kilogram of gold are the same. The "kilogram" is a unit of mass. Every kilogram has the same mass, no matter of what substance. Answer :

94. Q3. When liquid water freezes into ice, in what way is it different from the liquid water?

95. Ice is a solid state of matter, whereas water is a liquid state of matter. Answer :

96. Q4. Ali pumps air into his bicycle tyre until the tyre is inflated. a. After inflating the tyre , why Ali is still able to pump some air in it ?

97. a. Ali can still put some air in the tyre after it is inflated because gases can be compressed easily Answer :

98. Q5. Alina wants to remove the ring from her finger but finds it difficult to do so, but when she soaks her finger in soapy water and the ring comes off easily. Explain why.

99. The ring comes off easily because soapy water works as a lubricant that reduces friction between the ring and the hands. Answer :

100. Q6. Explain the difference between the physical change and chemical change?

101. Physical change: reversible change, like melting tearing off a paper, freezing, boiling, evaporating Chemical change: Irreversible change, Like burning, cooking Answer :

102. Q7 . Why liquid gold or liquid iron not found in our surroundings?

103. Liquid gold or liquid iron cannot found in our surroundings because they have high melting points. Answer :

104. Round 3

105. Third Round Visual Round Participants will be given 40 seconds. Each Right Answer carries 3 Marks

106. Q1.Which boy is facing more air resistance?

107. The boy running on the grassy field is facing more surface friction because friction is more on rough surfaces. Answer :

108. Q2.Explain the process given in the following picture . Which insoluble material do you think is being separated by this process.

109. The process is filtration in which we can separate insoluble solid from water by using filter paper. . Answer :

110. Q3. By looking at the picture, tell whether it is a reversible change or an irreversible change?

111. It is a réversible change Answer :

112. Q4.Explain the process?

113. Answer : The process is dissolving in which we can make a saline/salt solution by dissolving salt in water.

114. Why it is easy to pull or push a heavy bag having wheels on it?

115. It is easy to pull or push a heavy bag having wheels on it because wheels help to reduce friction and to move easily. Answer :

116. Q6. E xplain what this girl is trying to do by using sieve?

117. The girl in the given picture is separating two solids by the process of sieving. Answer :

118. temperature Q7. Explain the reaction in the given picture.

119. This is an irreversible reaction because we cannot get a raw egg again after it has been cooked. Answer :

120. Rapid Fire Round

121. Q1.What will be the effect of frictional force when lubricant is added between the surfaces? Ans : Friction is reduced.

122. Q2. Why s olids can retain their definite shape? Ans : Molecules are tightly packed

123. Q3. What is the difference between the mass and the volume? Ans : Mass is the amount of matter contained in a particular object. Volume is the amount of space that is occupied by an object

124. Q4. What is melting and freezing point of water? Ans : Its 0°C or 32°F (both are same)

125. Q5. How does the size of the solute grains affect the rate of dissolving of a substance? Ans : smaller the size of the solute grains the rate of dissolving of a substance will be fast.

126. Q6. What will happen to the sea level, if the ice on the land melts? Ans : more floods will occur

127. Q7. Does the volume of the solid like marble or stone change when you press or squeeze it? Ans : the volume will not be changed

128. Q8. What term is used to describe the phase change of a solid to a liquid? Ans : melting

129. Q9. Is it true that the bigger object always has the larger mass? Ans : no it is not true

130. Q10. Will you be able to open the lid of the container with wet or soapy hands? Ans : No, due to less friction hands are slippery.

131. THANK you