Science Olympiad Model Test Papers - 1 | Science Olympiad for Class 5 PDF Download

Ans: (d)

From the pattern, it appears that:

• The black dot moves in a clockwise direction along the edges of the square.
• The cross within the circle rotates by 90 degrees with each step.

Following this pattern, the correct answer would be the option in which:

• The black dot is in the next position in the clockwise sequence.
• The cross has rotated by another 90 degrees.

Ans: (a) bus stop

• Starting Position: Rohan is initially facing the Swimming Complex.

• Turn Angle: He turns 135° clockwise.

• Degrees per Step: Each adjacent position around Rohan represents a 45° turn.

• Steps Calculation: 135° / 45° = 3 steps in the clockwise direction.

• Clockwise Steps:Starting from the Swimming Complex:

  1st step: Bank
  2nd step: Library
  3rd step: Bus Stop 
  

Ans: (a)

Analyzing the relationship between "Authors," "Teachers," and "Men."

• Authors and Teachers can be overlapping groups because a person can be both an author and a teacher.
• Men can also overlap with both Authors and Teachers, as some authors and teachers may be men. However, not all authors or teachers are men (there are also female authors and teachers).

The best way to represent this relationship is with three overlapping circles, where each circle partially overlaps with the other two, allowing for the possibility that some people can belong to one, two, or all three categories.

Ans: (c)

• The numbers 135, 243, and 405 are all odd numbers, while 158 is an even number.
• Odd numbers are not divisible by 2, whereas even numbers are.
• Thus, 158 stands out as it does not share the same property as the others.
• This makes 158 the odd one out in this selection.

Ans: (c)

• Each square in the grid is divided by diagonal lines that form an "X" pattern, with additional lines in each quadrant.
• Option (c) shows the same structure as the other squares, completing the pattern accurately.

Ans: (a)

Remove all numbers:
 After removing all numbers (3, 5, 8, 4, and 9), the arrangement becomes:W K © N P T M F Q

Identify the element that is second to the right of this fifth element (P):

Ans: (a)
Option (a) is the correct choice because it contains the exact embedded shape of Fig. (X).

Ans: (d)

1. TORCH is represented as 7#@84.
2. SHARP is represented as 54©@6.

• Step-by-Step Breakdown:

  • Identify Letter Mappings:

    • From TORCH (T, O, R, C, H) → 7, #, @, 8, 4
      • T → 7
      • O → #
      • R → @
      • C → 8
      • H → 4
    • From SHARP (S, H, A, R, P) → 5, 4, ©, @, 6
      • S → 5
      • H → 4
      • A → ©
      • R → @
      • P → 6

  • Determine PATCH:

    • P → 6
    • A → ©
    • T → 7
    • C → 8
    • H → 4

  • Combine the Codes:

    • P A T C H → 6 © 7 8 4

• Matching with the Options:

  • Option (d) 6©784 corresponds exactly to the derived code.

Ans: (b)

• Camera comes first because it starts with 'C' and is the earliest in alphabetical order.
•  Crime is last, as it starts with 'C' but comes after all the other words.
• Create comes after 'Correct' since it starts with 'C' as well but has a later letter.
• Correct is next, as it starts with 'C' and comes after 'College'.
• College follows as it also starts with 'C' but comes after 'Camera'.

Ans: (a)

Ans: (c)

• The analogy compares the Sundari tree, which is typically found in marshy areas, to another plant that grows in coastal areas.
• The Black pepper plant is known to thrive in coastal regions, making it the correct choice for X.
• Other options like Opuntia, Fir, and Cedar tree do not specifically relate to coastal environments.
• Thus, the correct answer is (c) Black pepper plant.

Ans: (d)

• Evergreen trees 
• Coniferous trees 
• Deciduous trees 
• Since all the matches are correct, the option None of these is the right answer.

Ans: (c)

• Vertebrates are animals that possess a backbone, which is a key characteristic.
• While some vertebrates, like amphibians, can live both on land and in water, not all have the same body covering.
• The statement that "all vertebrates have hair" is incorrect; many do not have hair at all.
• Some vertebrates, such as birds, actually have hollow or air-filled bones, which help them fly.

Ans: (d)

• Kangaroo is the correct answer because it is a type of marsupial, which means it carries and nurses its young in a pouch.
• In contrast, a snake is a reptile, a goat is a mammal but not a marsupial, and a scorpion is an arachnid.
• Marsupials are primarily found in Australia and nearby islands, with kangaroos being one of the most well-known examples.
• Understanding the classification of animals helps in recognizing their unique characteristics, such as the pouch in marsupials.

Ans: (d)
The picture depicts poor sanitation conditions, breeding ground for mosquitoes and unhealthy living.

Ans: (c)

• Glucose is a simple sugar that provides a quick source of energy.
• When Aman drank glucose before the race, it was to ensure he had enough energy to perform well.
• Unlike other options, which focus on muscle building or bone strength, glucose is primarily used for instant energy.
• This is why athletes often consume glucose or energy drinks before competitions.

Ans: (b)

• Naphthalene balls are used to protect clothes from insects like moths that can damage fabric.
• They release a strong smell that acts as a repellent, keeping the clothes safe during storage.
• Using naphthalene is a common practice to ensure that clothes remain in good condition.
• Options A and C are incorrect because naphthalene does not enhance brightness or color.

Ans: (a)

• Paste of baking soda is effective because it helps to neutralize the acidity from the ant bite, reducing irritation.
• Applying this paste can provide relief from itching and swelling.
• Other options like amla juice or hot oil do not have the same soothing effect on ant bites.
• Using red chili paste could actually worsen the irritation instead of helping.

Ans: (c)
Lungs (N) are protected with the rib cage as well as exchange of gases takes place here. 

Ans: (b)

• The maximum volume of the basketball is 450 mL.
• Initially, it contains 430 mL of air.
• When 50 mL of air is added, the total would be 480 mL.
• However, since the maximum capacity is 450 mL, it cannot exceed this limit.
• Thus, the final volume of air inside the basketball will be 450 mL without bursting it.

Ans: (b)
‘X’ in the given figure is a joint. A joint is the place where two bones meet. Most joints are movable.

Ans: (b)

• Radha's action of pushing the wall demonstrates that she exerted force, which means she used energy.
• However, since the wall did not move, no work was accomplished in the physics sense, as work requires movement in the direction of the force.
• This situation illustrates that energy can be expended without resulting in work being done.
• Thus, the correct conclusion is that energy is spent but work is not done.

Ans: (b)

• Planting trees in a nature reserve is beneficial for the environment as it helps in carbon absorption, improves air quality, and provides habitat for wildlife.
• In contrast, activities like burning fossil fuels and using CFCs contribute to pollution and climate change.
• Using herbicides can harm local ecosystems and biodiversity.
• Thus, planting trees is a positive action that supports environmental health.

Ans: (c)

• The Moon is the smallest of the three celestial bodies.
• The Earth is larger than the Moon but significantly smaller than the Sun.
• The Sun is the largest, being a massive star at the center of our solar system.
• Thus, the correct order from smallest to largest is Moon, Earth, Sun.

Ans: (d)

• During an earthquake, it's crucial to know the right steps to ensure your safety.
• If you are indoors, the best option is to stay inside and take cover under a sturdy piece of furniture like a desk or table.
• If you are outdoors, you should keep your distance from trees and buildings to avoid falling debris.
• Options A and B are both correct, making option D the right choice.

Ans: (c)

• A compass is a tool used for navigation and direction finding.
• It operates based on the Earth’s magnetic field, which allows the compass needle to align itself with the magnetic north.
• This means that the compass points towards the magnetic poles of the Earth, helping users determine direction.
• Other options like solar energy, moon’s gravity, and Earth’s gravity do not play a role in how a compass functions.

Ans: (c)

• Sedimentation is the process where solid particles, like sand, settle at the bottom of a liquid when left undisturbed.
• After sedimentation, the clear liquid can be carefully poured out, which is known as decantation.
• This method is useful for separating solids from liquids without using filters.
• In this case, the sand settles, and the clear water is poured into another container, demonstrating both sedimentation and decantation.

Ans: (d)

• Chemical change involves a transformation that alters the chemical composition of a substance.
• In this case, rusting of iron nails and making curd from milk are both processes that change the original materials into new substances.
• Melting of ice-cream is a physical change as it only changes the state of matter without altering its chemical structure.
• Thus, the correct answer is Both B and C as they both exemplify chemical changes.

Ans: (c)
Nuclear energy is a renewable source of energy while others are non-renewable energy sources.

Ans: (d)
The universe is made up of millions of galaxies. It is made up of millions of galaxies. Galaxies are the collection of billion of stars, gases and dust. The Milky Way is one of them.

Ans: (b)

• Direct contact is typically associated with the transmission of infectious diseases, not chronic conditions like Diabetes.
• Plague is transmitted by insects, specifically fleas.
• Thus, option (b) is the only one that does not correctly match a disease with its mode of transmission.
• Influenza spreads through the air, while Cholera is caused by contaminated food and water.

Ans: (c)

• Chhau is a traditional dance form that originates from West Bengal, making option (c) the correct match.
• Option (a) incorrectly pairs Garba with Rajasthan; it is actually from Gujarat.
• Option (b) pairs Ghoomar with Gujarat, which is correct, but not the answer we are looking for.
• Option (d) incorrectly associates Lavani with Punjab; it is a dance from Maharashtra.

Ans: (b)

• Potassium is one of the minerals in bones, and the question suggests changing it to phosphorus, which is also a mineral but not typically found in the same context as potassium in bones.
• The term hard accurately describes the tissue of bones, so it should remain unchanged.
• The word destroyed refers to the process of blood cell formation and is appropriate in this context.
• Thus, the correct option is to change potassium to phosphorus, making option (b) the right choice.

Ans: (b)

• Removing the small intestine disrupts the absorption of nutrients, leading to malnutrition.
• The small intestine is crucial for breaking down food and absorbing vitamins and minerals.
• Without it, the body cannot effectively utilize the nutrients from the food consumed.
• This results in serious health issues, including weight loss and deficiencies.

Ans: (b)
The label 1 represents the process of evaporation (water to water vapour), label 2 is condensation (water vapour to water), and label 3 is freezing (water to ice).

Ans: (b)

• Diesel fuel is primarily derived from the process of refining petroleum, which is a natural resource.
• The refining process involves separating and purifying different components of crude oil.
• While kerosene and coal are also fuels, they are not the main sources for diesel.
• Understanding the source of diesel is important for energy and fuel discussions.

Ans: (a)

• Mauna Loa is recognized as an active volcano located in Hawaii.
• It has erupted numerous times in the past, with its last eruption occurring in 2022.
• In contrast, Mount Everest and Mauna Kea are not classified as active volcanoes.
• Understanding the difference between active and dormant volcanoes is crucial in geology.

Ans: (c)
Solids expands on heating

Ans: (b)
Food web is a network of interconnected food chains existing in an ecosystem.

Ans: (a)

• The potential energy of an object is determined by its height above the ground.
• When the height of the brick is increased from 10 meters to 15 meters, it gains more potential energy.
• Potential energy is directly proportional to height; thus, as height increases, potential energy also increases.
• Therefore, the correct answer is that the potential energy of the brick will increase.

Ans: (b)
Speed of light in vacuum is 3 × 10⁸ m/s.

Ans: (c)

• Miscibility refers to the ability of two substances to mix together uniformly.
• In this case, water and milk are miscible because they can blend together to form a homogeneous mixture.
• On the other hand, orange juice and carbon dioxide do not mix well with water, making them immiscible.
• Thus, the correct answer is (c) Water, Milk, as they can mix completely.

Ans: (a)

• Monocotsdicots have seeds with two cotyledons.
• In this case, rice is a monocot, and pea is a dicot.
• The other options mix monocots and dicots incorrectly.
• Thus, the correct pairing is Rice - Pea as it accurately represents one monocot and one dicot.

Ans: (b)

• Higher levels of CO₂ in the atmosphere trap heat, which contributes to global warming. This is a well-established scientific fact.
• While UV rays and acid rain are related, they do not directly cause each other.
• Decreasing carbon dioxide does not lead to ozone depletion; in fact, ozone depletion is primarily caused by chemicals like CFCs.
• Increasing oxygen does not significantly affect atmospheric temperature.

Ans: (c)

• Hard: The material must be solid and not easily deformed.
• Opaque: It does not allow light to pass through, meaning you cannot see through it.
• Lustrous: It has a shiny surface that reflects light well.
• The only option that meets all these criteria is the Copper spoon, as it is a metal that is both hard and shiny.

Ans: (c)
The label I is respiration and label II is carbon dioxide. During photosynthesis in plants, oxygen is released which is taken in by human beings and animals for respiration. They in turn release carbon dioxide needed for photosynthesis by plants.

Ans: (d)
Cocklebur is incorrectly placed in group III and should be replaced with Litchi.

Ans: (c) 
Camel is a desert animal while Polar bear is found in cold, polar habitats.

Ans: (b)

• Ajanta caves are famous for their ancient paintings that illustrate the life of Buddha, making option (i) incorrect in this context.
• The Cheraw dance is indeed a traditional dance from Mizoram, confirming option (ii) as correct.
• Jantar Mantar was built by Maharaja Jai Singh II, which makes option (iii) correct.
• The Qutub Minar has five storeys, making option (iv) incorrect.

Ans: (b)
Like poles repel while unlike poles attract which is not possible as shown.