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Class 6 Exam  >  Class 6 Notes  >  Science Olympiad Class 6  >  Science Olympiad Model Test Paper - 3

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6 PDF Download

Note: The questions provided in this document are similar to the questions that were asked in the actual Olympiad exam. So, we recommend you study these for your Olympiad preparation.

Logical Reasoning

Q1: Find out the alternative figure which contains figure (X) as its part.
Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) (a)
(b) (b)
(c) (c)
(d) (c)

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

Q2: Ram is the husband of Reena. Reena is the sister of Raju and Raju is the son of Hemant. How is Ram related to Hemant?
(a) Father
(b) Brother-in-law
(c) Father-in-law
(d) Son-in-law

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

  • Ram is married to Reena, who is the daughter of Hemant.
  • This makes Ram the son-in-law of Hemant.
  • Reena's brother, Raju, is also Hemant's son, confirming the family connection.
  • Thus, the correct relationship is that Ram is Hemant's son-in-law.

Q3: There is a specific connection between the terms on both sides of the colon. Determine the relationship in the left pair and identify the missing term. LNQ : MOP :: TVY : _ J _
(a) UVX
(b) SVX
(c) UWX
(d) UWZ

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • The relationship between LNQ and MOP involves shifting each letter by a certain number in the alphabet.
  • L to M is a shift of +1, N to O is +1, and Q to P is -1.
  • Applying the same pattern to TVY: T to U is +1, V to W is +1, and Y to X is -1.
  • Thus, the missing term is UWX, which follows the same pattern.

Q4: Rahul is positioned eleventh from the top in a class of 40 students. What will his position be from the bottom?
(a) 29th
(b) 30th
(c) 31st
(d) 32nd

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

  • Rank from the bottom can be calculated using the formula: Total students - Rank from the top + 1.
  • Here, there are 40 students and Rahul's rank from the top is 11.
  • So, his rank from the bottom = (40 - 11 + 1) = 30th.
  • This means Rahul is the 30th student when counting from the bottom of the class.

Q5: Some letters are given which are numbered as 1, 2, 3, 4, 5, and 6. Select the combination of numbers so that the letters are arranged to form a meaningful English word. T H Y M R H
(a) 6, 4, 3, 2, 1, 5
(b) 5, 6, 3, 1, 2, 4
(c) 6, 3, 4, 1, 2, 5
(d) 5, 1, 3, 4, 6, 2

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • The correct combination of numbers is 6, 3, 4, 1, 2, 5, which rearranges the letters to spell the word "RHYTHM".
  • This word is a meaningful English term that refers to a strong, regular, repeated pattern of movement or sound.
  • To find the answer, you need to look at the letters and see how they can be rearranged into a known word.
  • In this case, the letters T, H, Y, M, R, H can be rearranged to form "RHYTHM" using the correct number sequence.

Q6: How many times does the number 7 appear in the given series, where it is directly preceded by 3 and directly followed by 8?
(a) 1
(b) 2
(c) 3
(d) 4

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

  • The specific sequence to look for is 3 7 8.
  • In the provided series, this sequence appears twice.
  • Thus, there are 2 instances of 7 that meet the criteria.
  • Therefore, the correct answer is (b) 2.

Q7: Pointing towards a girl, Sonu said, "She is the mother of my paternal grandfather's son." How is the girl related to Sonu?
(a) Mother
(b) Grandmother
(c) Aunt
(d) Sibling

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

  • Grandfather's son means either son or uncle.
  • Mother of uncle or son is grandmother.

So, grandmother is the correct answer.

Q8: Find the odd one out in the given series.
43, 88, 179, 358
(a) 43
(b) 88
(c) 179
(d) 358

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)
Each time, we are multiplying by 2 and then adding 2.

43 x 2 = 86 + 2 = 88

88 x 2 = 176 = 176 + 2 = 178 (actual)

178 x 2 = 356 + 2 = 358

So, 179 is the odd one out..

Q9: Which of the following is the net of the given shape?

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6(a) Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6
(b) Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6
(c) Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6
(d) Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

The given shape is a square pyramid which has 1 square face and 4 triangular faces.

Q10: Ali begins walking in the North direction. He covers a distance of 20 m, then makes a right turn and walks 30 m. After that, he turns right again and walks another 20 m. What is the distance and direction of Ali from his starting point?
(a) 30 m, East
(b) 20 m, North
(c) 30 m, South-East
(d) 10 m, North-West

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Ali starts by walking 20 m North.
  • After turning right, he walks 30 m East.
  • Then, he turns right again and walks 20 m South.
  • At this point, he is 30 m East of his starting position.

Science Section

Q11: Which of the following conversions is/are accurate?
(i) 100 quintals = 1 metric ton 
(ii) 10 decades = 100 years 
(iii) 1 light year = 9.46 x 1015 m 
(iv) 10 centuries = 1 millennium 
(a) (i), (ii), and (iv) only
(b) (ii) and (iv) only
(c) (ii), (iii), and (iv) only
(d) (iii) and (iv) only

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • Conversion (i) is incorrect because 1 metric ton equals 1000 kg, not 100 quintals.
  • Conversion (ii) is correct as 10 decades indeed equals 100 years.
  • Conversion (iii) is also correct; 1 light year is approximately 9.46 x 10^15 meters.
  • Conversion (iv) is correct since 10 centuries equals 1 millennium.

Q12: Which of the following statements is not true for reflection in plane mirror?
(a) Angle of incident is equal to angle of reflection.
(b) The image is inverted horizontally.
(c) The image is inverted vertically.
(a) Only (a)
(b) Only (a) and (b)
(c) Only (c) and (a)
(d) Only b

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

The image in case of reflection through plain mirror is erect vertically but inverted horizontally.

Q13: In which of the following cases will regular reflection not take place when a beam of light strikes it?
(a) Marble flooring with oil spread over
(b) Mirror
(c) Shiny metal sheet
(d) Unpolished wooden surface

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

When a beam of light strikes an unpolished wooden surface, there will be a diffused reflection as an unpolished wooden surface is irregular, and not smooth.

Q14: Read the given statements and select the correct option. Statement 1: The displacement of a body may be zero, though the distance travelled can be finite. Statement 2: If a body moves such that finally it arrives at the initial point, then displacement is zero while the distance is finite.
(a) Both statements 1 and 2 are true, and statement 2 is the correct explanation of statement 1
(b) Both statements 1 and 2 are true, but statement 2 is not the correct explanation of statement 1
(c) Statement 1 is true, but statement 2 is false
(d) Statement 1 is false, but statement 2 is true

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Both statements are correct, and statement 2 provides a clear explanation for statement 1.
  • Displacement is defined as the change in position from the starting point to the ending point.
  • If a body returns to its starting point, the displacement is zero, even if it has traveled a certain distance.
  • This means that while the distance can be finite, the displacement can indeed be zero.

Q15: A student wants to check the presence of starch in potato, so he puts iodine solution with a dropper on potato. What effect will be shown?

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6(a) Blue black colour will be observed when iodine solution is applied.(b) Blue colour will be observed when iodine solution is applied.
(c) Black colour will be observed when iodine solution is applied.
(d) Blue red colour will be observed when iodine solution is applied.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

After putting iodine solution on potato, blue black colour will be observed.

Q16: If the the refractive index of any glass is 1, then which of the following statements is true regarding the glass?
(a) The refracted ray will turn towards normal after refraction.
(a) The refracted ray will turn away from normal after refraction.
(a) The light will be partially reflected.
(a) The glass will become invisible.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

As the refractive index it 1, the light will not go through any deviation. Hence, the glass will be invisible.

Q17: Read the following statements carefully and select the correct option. 
(i) In an electric cell, chemical energy is converted into electrical energy. 
(ii) A collection of electric cells is referred to as a battery. 
(a) Only (i) is true 
(b) Only (ii) is true 
(c) Both (i) and (ii) are true 
(d) Both (i) and (ii) are false 

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • Both statements are correct: (i) an electric cell transforms chemical energy into electrical energy, which is essential for powering devices.
  • Additionally, (ii) indicates that when multiple electric cells are combined, they form a battery, which increases the voltage and capacity.
  • This understanding is crucial for grasping how batteries work in everyday electronics.

Q18: Which type of roots is present in the plant shown below?

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) Lateral roots
(b) Tap roots
(c) Fibrous roots
(d) Transpiratory roots

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

The plant shown in the picture has parallel venation. The plants with leaves having parallel venation generally have fibrous roots, i.e. there is no central root.

Q19: Which of the following statements is not true?
(a) Aquatic animals can breathe inside the water.
(b) Earthworms cannot breathe inside the soil.
(c) Flour mills can be run by moving air.
(d) Plants cannot live without oxygen for long time.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

Earthworms can breathe inside the soil. They come outside only when water takes the place of air in the soil.

Q20: An electrician uses a screw-driver to repair the electric devices. The handle of a screw-driver is usually made of
(a) rubber or plastic
(b) iron
(c) steel
(d) aluminium

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

The handle of a screw-driver is made of rubber or plastic, as rubber and plastic are bad conductors of electricity.

Q21: Observe the given flow chart showing the interconversion of different states of water, brought about by either heating or cooling.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6The process A, B and C respectively are:
(a) Freezing, Vaporisation, Condensation
(b) Fusion, Vaporisation, Condensation
(c) Vaporisation, Condensation, Fusion
(d) Malting, Condensation, Evaporation

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

Q22: Read the given statements and select the correct option. 
Statement 1: Handles of cooking utensils are made up of metals like copper, aluminium, etc. 
Statement 2: Metals are poor conductors of heat. 
(a) Both statement 1 and statement 2 are true, and statement 2 is the correct explanation of statement 1 
(b) Both statement 1 and statement 2 are true, but statement 2 is not the correct explanation of statement 1 
(c) Statement 1 is true, but statement 2 is false 
(d) Both statement 1 and statement 2 are false 

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • Statement 1 is correct because cooking utensil handles are indeed made from metals like copper and aluminium.
  • Statement 2 is incorrect; metals are actually good conductors of heat, not poor conductors.
  • Thus, the correct choice is that Statement 1 is true, but Statement 2 is false.

Q23: Study the following flow chart to identify food components 'X', 'Y' and 'Z'.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

Read the following statements regarding 'X', 'Y' and 'Z', and select the correct ones.
(i) Cellulose is a 'X', which is not a food for humans.
(ii) Z are the richest source of energy to our body, but they require more oxygen for their combustion.
(iii) When we consume more Z than required, our body stores the excess of Z as Y.
(iv) X act as insulator and keep our body warm.
(v) X are essential for the maintenance of body tissues.
(a) (i), (ii) and (iii)
(b) (ii) and (v)
(c) (iii), (iv) and (v)
(d) (i) and (iv)

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

  • X represents proteins since proteins contain nitrogen also in addition to carbon, hydrogen and oxygen. Proteins are essential for the maintenance of body tissues. Hence, statement (v) is correct.
  • Fats and carbohydrates are made up of carbon, hydrogen and oxygen. Fats are insoluble in water. Hence, Z represents fats.
  • Carbohydrates are soluble in water. Hence, Y represents carbohydrates. Fats are the richest source of energy to our body, but they require more oxygen for their combustion. Hence, statement (ii) is correct.

Q24: Light is a form of energy produced by a
(a) luminous object
(b) transparent object
(c) non-luminous object
(d) opaque object

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

Light is a form of energy produced by a luminous object. An object is considered luminous if it emits its own light.

Q25: When salt is mixed with water, it dissolves to create a solution. In this scenario,
(a) Salt is the solvent while water is the solute
(b) Both salt and water are solutes
(c) Salt is the solute and water is the solvent
(d) Both salt and water are solvents

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • Salt is the substance that dissolves, making it the solute.
  • Water acts as the solvent, which is the medium that dissolves the solute.
  • In a solution, the solute is the component that is dissolved, while the solvent is the one that does the dissolving.
  • Thus, in this case, salt is the solute and water is the solvent.

Q26: The given figure is a cross section of the lady's finger fruit. Identify: (i) the parts labelled 'X', and (ii) the parts of the flower from where they have been developed.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) (i) - Pollen grains
(ii) - Anthers
(b) (i) - Seeds
(ii) - Ovules
(c) (i) - Ovu
(d) (i) - Seeds
(ii) - Stigma

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

Structure X represents seeds of the lady's finger fruit. After fertilisation occurs, each ovule develops into a seed. The ovary surrounding the ovules develops into a fruit that contains one or more seeds.

Q27: Which of the following is/are the symptom(s) of Kwashiorkor?
(a) Anaemia
(b) Dark and scaly skin
(c) Mental retardation
(d) All of the above

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)
Kwashiorkor is a severe form of malnutrition, caused by a deficiency in dietary protein. Symptoms of Kwashiorkor are: Dark and scaly skin, anaemia, and mental retardation.

Q28: Which pair of substances among the following represents examples of conductors?
(a) Copper, wood
(b) Gold, rubber
(c) Plastic, Eraser
(d) Aluminium, Silver

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

  • Aluminium and Silver are known for their excellent ability to conduct electricity.
  • Conductors are materials that allow electric current to flow through them easily.
  • In contrast, materials like wood, rubber, and plastic are insulators, which do not conduct electricity well.
  • Thus, the correct answer is (d) Aluminium and Silver, as they are both effective conductors.

Q29: Observe the diagram depicting some stages during the processing of cotton, and identify the parts labelled X, Y and Z.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) (1)
(b) (2)
(c) (3)
(d) (4)

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

The machine shown is a ginning machine. Cotton bolls are fed into the machine in order to separate seeds from the fibres. The fibre separated at this stage is called lint.

Q30: Which of the given letter groups upon unscrambling will give the term used to designate a group of animals that eat both flesh and plant?
(a) R E R V H O I B S E
(b) M N O V I R O E S
(c) C R O P R U D E S
(d) V A E R C O I N S R

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

  • The correct unscrambled word is "OMNIVORES."
  • Omnivores are animals that consume both meat and plants.
  • To find the answer, you need to rearrange the letters in the options.
  • Among the options, only option (b) can be rearranged to form the word "OMNIVORES."

Q31: Select the option where one rabi and one kharif crop are correctly matched.
(a) Gram, Mustard
(b) Rice, Maize
(c) Cotton, Groundnut
(d) Wheat, Soybean

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

  • Wheat is classified as a rabi crop, which means it is sown in the winter and harvested in the spring.
  • Soybean is categorized as a kharif crop, meaning it is planted in the monsoon season and harvested in the autumn.
  • This option correctly pairs one rabi crop with one kharif crop.
  • The other options do not correctly match a rabi and a kharif crop.

Q32: The stem(s) of which of the following plants is/are the source of food?
(a) Ginger
(b) Potatoes
(c) Garlic
(d) All of the above

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

Potatoes, garlic and ginger are underground stems modified to store food.

Q33: Pigments of photosynthesis are present in which organelle of the plant cell?
(a) Cytoplasm
(b) Chloroplast
(c) Nucleus
(d) Mitochondrion

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Q34: Select the odd one out based on the causative agent.
(a) Chikungunya
(b) Typhoid
(c) Pneumonia
(d) Tuberculosis

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Chikungunya is caused by a virus, which makes it different from the others.
  • The other options, Typhoid, Pneumonia, and Tuberculosis, are all caused by bacteria.
  • This distinction in the type of causative agent is what sets Chikungunya apart.
  • Understanding the difference between viral and bacterial infections is crucial in medicine.

Q35: _________ was the first person in the world to go into space.
(a) Yuri Gagarin
(b) Neil Armstrong
(c) Rakesh Sharma
(d) Valentina Tereshkova

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Yuri Gagarin made history as the first human to travel into space in April 1961.
  • This monumental event marked a significant achievement in the space race.
  • His mission aboard the Vostok 1 spacecraft lasted about 108 minutes.
  • Gagarin's journey paved the way for future space exploration and human spaceflight.

Q36: Polar bears are adapted to live in the Arctic region. Which of these are necessary adaptations for cold habitats? 
(i) White fur 
(ii) Thick fur 
(iii) Thick layer of blubber 
(iv) Sharp teeth 
(v) Good sight
(vi) Furry paws 
(a) (ii), (iii) and (vi) 
(b) (i), (ii) and (vi) 
(c) (ii), (iii), (iv) and (v) 
(d) (i), (iii) and (iv)

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)
Thick fur, thick layer of blubber and furry paws are the adaptation for animals living in cold habitats.

Q37: Solubility of solids in water typically rises with
(a) Increase in temperature
(b) Decrease in temperature
(c) Decrease in solvent amount
(d) Both B and C

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Solubility of solids in water is influenced by temperature.
  • For most solids, as the temperature increases, their solubility also increases.
  • This means that more of the solid can dissolve in water when it is heated.
  • Conversely, a decrease in temperature usually leads to a decrease in solubility.

Q38: Read the given statements and select the correct option.
Statement 1: Excess intake of carbohydrates could lead to various health problems.
Statement 2: Extra carbohydrates get converted into fats and are stored in the body.
(a) Both statements 1 and 2 are true, and statement 2 is the correct explanation of statement 1
(b) Both statements 1 and 2 are true, but statement 2 is not the correct explanation of statement 1
(c) Statement 1 is true, but statement 2 is false
(d) Both statements 1 and 2 are false

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Both statements are true: Statement 1 highlights that too many carbohydrates can cause health issues, while statement 2 explains that excess carbohydrates turn into fats.
  • Connection between statements: The conversion of carbohydrates into fats is a direct reason why excess intake can lead to health problems.
  • Conclusion: Since both statements are accurate and statement 2 clarifies statement 1, option (a) is the correct choice.

Q39: Refer the given diagram ‘D’, ‘M’ and ‘N’ showing three states of matter.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) Flexible     
(b) Rigid      
(c) Loose       
(d) All the above 

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)
P is evaporation, Q is freezing, R is sublimation and S is condensation

Q40: Read the given statement._______ is the process of seeping of water into the ground. Unscramble the given letter groups and select the option that correctly fills in the blank.
(a) PRONEOAIVTA
(b) NLRITIFTAO
(c) NONSTODEICAN
(d) RIPONITPTICA

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (b)

  • The correct word is INFILTRATION, which refers to the process where water moves from the surface and soaks into the ground.
  • This process is essential for replenishing groundwater supplies and is a key part of the water cycle.
  • Understanding infiltration helps in managing water resources effectively.
  • Among the options, only the letters in option (b) can be rearranged to form the correct term.

Q41: Abhilasha's teacher requested her to categorize fibres into natural and synthetic types. She created three groups, but some errors are present. Identify the group(s) that contain mistakes and choose the correct option.
Group I: Silk, Linen, Wool
Group II: Acrylic, Nylon, Rayon
Group III: Polyester, Cotton, Fur
(a) Group I only
(b) Group II only
(c) Group III only
(d) Group I and III only

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)

  • Group III has an error because Polyester is a synthetic fibre, while Cotton and Fur are natural fibres. This means that Group III is incorrectly categorized.
  • Group I and Group II are correctly classified as they contain only natural and synthetic fibres, respectively.
  • Thus, the mistake is solely in Group III.

Q42: Select the false statement.
(a) Low level of sodium in blood causes hyponatremia.
(b) Lack of vitamin E leads to nerve disorder and muscle weakness.
(c) Insufficient vitamin B1 results in beriberi.
(d) All of these statements are true.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

  • All the statements provided are accurate. Therefore, option (d) is the correct choice.
  • Hyponatremia is indeed caused by low sodium levels in the blood.
  • A deficiency in vitamin E can lead to nerve disorders and muscle weakness.
  • Additionally, a lack of vitamin B1 is known to cause beriberi.

Q43: Which of the following statements are accurate regarding acid rain?
(i) Acid rain has harmful effects on living beings. 
(ii) Acid rain mainly comprises of H2SO4 and HNO3. 
(iii) Acid rain causes damage to the ozone layer. 
(iv) Acid rain causes damage to buildings and monuments. (a) (i) and (ii) only
(b) (i) and (iii) only
(c) (i), (iii), and (iv) only
(d) (i), (ii), and (iv) only

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

  • Acid rain is known to have harmful effects on living organisms, which makes statement (i) true.
  • It primarily consists of H2SO4 and HNO3, confirming statement (ii) as correct.
  • However, it does not cause damage to the ozone layer, so statement (iii) is false.
  • Statement (iv) is true as acid rain can indeed damage buildings and monuments.

Q44: Read the following statements. (i) The ozone layer is located in the stratosphere. (ii) The troposphere is the coldest layer of the Earth's atmosphere. (iii) The exosphere is the highest layer of the atmosphere. (iv) Most meteorites disintegrate in the thermosphere.
(a) (ii) and (iv) only
(b) (i) and (ii) only
(c) (i) and (iv) only
(d) (i) and (iii) only

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

  • The ozone layer is indeed found in the stratosphere, which protects us from harmful UV rays.
  • The troposphere is not the coldest layer; that title goes to the mesosphere.
  • The exosphere is the highest layer of the atmosphere, confirming statement (iii).
  • Most meteorites burn up in the thermosphere, not the exosphere.

Q45: Which of the following statements about cooking of food are incorrect?
a. It is a chemical and reversible change.
b. It is a physical and reversible change.
c. It is a physical and irreversible change.
d. It is a chemical and irreversible change.
(a) a and b
(b) c and d
(c) a, b and c
(d) a, c and d

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (c)
Cooking of food is an irreversible chemical change. Hence, only statement d is correct.

Achievers Section

Q46: A mixture of stones, sand and salt in water is passed through a series of processes, A, B and C. The stones are separated out after process A, sand after process B and salt after process C, as indicated in the flow chart.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

The correct identification of processes A, B and C is:
(a) A: Sieving
       B: Filtration
       C: Evaporation
(b) A: Filtration
       B: Sieving
       C: Evaporation
(c) A: Filtration
      B: Evaporation
     C: Sieving

(d) A: Evaporation
       B: Filtration
       C: Sieving

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Stones being bigger in size can be separated out by sieving.
  • Sand on filtration will separate out as a residue.
  • Water evaporates when the mixture is heated slowly or placed in the sun, leaving salt behind.

Q47: What is the name of the process by which pure solids of copper sulphate can be obtained from its impure sample?
(a) Recrystallisation
(b) Filtration
(c) Sublimation
(d) Fraction distillation

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Recrystallisation or crystallisation is the process by which we can obtain pure crystals of copper sulphate from an impure sample.
  • For this, first a supersaturated solution of the salt is prepared and allowed to cool slowly. Clean blue crystals are formed which are separated out and dried between the folds of the filter paper.

Q48: Which of the following statements is false about these circuits?

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) In circuit 2, the current will flow through battery but not through bulb.
(b) The heat will produced in bulb in circuit 1.
(c) Total charge in the circuit remains same.
(d) The current will flow in clockwise direction in circuit 2.

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

The statement in option 1 is incorrect because when the key is open, no current will flow through in any element of the circuit.

Q49: Match the parts (a, b, c, d) of the chart with the statements (1, 2, 3, 4) given below:

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6

(a) a - 2, b - 4, c - 1, d - 3
(b) a - 2, b - 1, c - 4, d - 3
(c) a - 4, b - 2, c - 3, d - 1
(d) a - 3, b - 1, c - 4, d - 2

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (a)

  • Winnowing: The process of separating lighter particles from the heavier component of a mixture under the influence of wind is called winnowing. Grains are separated from husk by this method.
  • Filtration: This method is used for separating fine insoluble solid particles from a suspension.
  • Condensation: The process of cooling the vapour to convert it into liquid is called condensation.
  • Crystallisation: Pure crystals of a solute can be separated by cooling a supersaturated solution of the substance. The process is called crystallisation.

Q50: Which of the following pollutants causes ozone holes?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Carbon monoxide
(d) Chlorofluorocarbon

Science Olympiad Model Test Paper - 3 | Science Olympiad Class 6  View Answer

Ans: (d)

Chlorofluorocarbons, also known as CFCs, consist of chemical compounds made up of chlorine, fluorine and carbon. These are harmful when released into the atmosphere because of their destructive reaction with ozone molecules, which provide the Earth with a protective layer against UV radiation.

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1. What topics are typically covered in the Class 6 Science Olympiad?
Ans. The Class 6 Science Olympiad usually covers topics such as the scientific method, basic physics concepts, life sciences, earth sciences, and simple chemistry. Students may encounter questions related to plants, animals, human body systems, matter, energy, and environmental science.
2. How can I prepare effectively for the Class 6 Science Olympiad?
Ans. To prepare effectively, students should review their class notes and textbooks, practice sample papers, and take mock tests. Joining study groups or online forums can also help clarify doubts. Additionally, focusing on understanding concepts rather than rote memorization is crucial.
3. Are previous years' question papers helpful for the Class 6 Science Olympiad?
Ans. Yes, previous years' question papers are very helpful for preparation. They provide insights into the exam pattern, types of questions asked, and the difficulty level of the exam. Practicing with these papers can boost confidence and improve time management skills during the actual exam.
4. What is the format of the Class 6 Science Olympiad exam?
Ans. The Class 6 Science Olympiad exam typically consists of multiple-choice questions (MCQs) with a specific number of questions to be answered in a limited time. The exam tests students' understanding of scientific concepts and their application in real-world scenarios.
5. How does the scoring work in the Class 6 Science Olympiad?
Ans. In the Class 6 Science Olympiad, students usually receive points for each correct answer, while there may be a penalty for incorrect answers, depending on the specific rules of the competition. It is important to check the guidelines provided by the organizing body for detailed scoring information.
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