Science Olympiad Model Test Paper - 3 | Science Olympiad for Class 1 PDF Download

Ans: (b)
The number of sides in the second figure is one more than the first figure.

Ans: (c)
Triangles are : T₁, T₂, T₃, T₄ i.e., 4 in number.

Ans: (a)

Ans: (d)

• The question asks how many groups of 3 toy ducks can be made from a total number of toy ducks.
• To find the answer, you need to divide the total number of toy ducks by 3.
• If the total number of toy ducks is a multiple of 3, then you can form complete groups.
• In this case, the correct answer is 3, meaning you can form 3 groups of toy ducks.
  
  

Ans: (b)
3^rd Sunday of October 20XX falls on 19^th October.
So, Divya's painting competition will be held on 19^th October.

Ans: (c)

• Natural thing refers to elements found in nature, like soil.
• The analogy compares a natural element with a corresponding human-created item.
• Thus, just as soil is natural, a sofa is a product of human design.
• Man-made thing indicates items created by humans, such as a sofa.

Ans: (b)

• The letters "RRIENADOC" can be rearranged to form the word "Coriander," which is a plant known for its soft and green stems.
• Other options do not represent plants with soft and green stems.
• WEEOARLTMN does not unscramble to a valid plant name.
• SREO and MNEE also do not correspond to any known plants with the specified characteristics.

Ans: (d)

• Wheat is primarily a food product and is not a material used in furniture making.
• Common materials for tables include wood, plastic, and glass, which are durable and suitable for construction.
• In contrast, wheat does not have the structural properties needed for making a table.
• Thus, the correct answer is (d) Wheat, as it is not a material used for tables.

Ans: (b)

• The sequence starts with Cotton plant, which produces Fibre.
• The next step in the process is to turn the fibre into Yarn, which is essential for making fabric.
• Finally, the yarn is used to create Cotton clothes.
• Thus, the correct answer is Yarn, as it logically follows the production process from cotton to clothing.

Ans: (c)

• Cow is a classic example of a herbivore, meaning it primarily eats plants.
• In contrast, a Lion and a Bear are considered carnivores or omnivores, as they eat meat and other foods.
• A Snake can be a carnivore, depending on the species, as many snakes eat small animals.
• Thus, the correct answer is (c) Cow, as it exclusively feeds on grass and other vegetation.

Ans: (c)

• Drinking water is essential for hydration and typically requires very little water compared to other activities.
• Washing a car and taking a bath use a significant amount of water, while watering plants can also consume a lot depending on the size of the garden.
• In contrast, the amount of water needed for drinking is minimal, making it the action that requires the least amount of water.

Ans: (d)

• Rubber is a natural product that comes from the sap of rubber trees.
• While salt, pepper, and sugar are obtained from other sources, rubber is specifically harvested from trees.
• The process involves tapping the tree to collect the latex, which is then processed into rubber.
• This makes rubber unique among the options, as it is the only one that is directly sourced from trees.

Ans: (d)
We sing Patriotic songs on these national festivals of India.

Ans: (c)

• Mirrors are specifically designed to reflect light, making them highly effective at doing so.
• While a book and a wall can reflect some light, they do not do it as efficiently as a mirror.
• Fabric typically absorbs more light than it reflects, which is why it is not a good reflector.
• Thus, the correct answer is the mirror, as it is the best example of an object that reflects light.

Ans: (b)

• Covering our mouth and nose while sneezing is important to prevent the spread of germs. This helps to protect others from getting sick.
• When we sneeze, tiny droplets containing germs can fly into the air, so covering up is a simple way to reduce the risk of illness.
• It is a common courtesy and a public health measure to ensure that we do not infect others around us.
• By doing this, we contribute to a healthier environment for everyone.

Ans: (a)

• Eagle and Pigeon are both birds, which means they share the same group in the animal kingdom.
• In contrast, Cow and Tiger belong to different groups: mammals and carnivores.
• Frog and Snake are also different; frogs are amphibians while snakes are reptiles.
• Lastly, Elephant and Monkey are both mammals but belong to different orders.

Ans: (c)

• Bat is the correct answer because it is the only mammal that can truly fly.
• Unlike fish, which live in water, and dogs and crocodiles, which cannot fly, bats have wings that allow them to soar through the air.
• Bats are unique in their ability to navigate and hunt while flying, making them fascinating creatures.

Ans: (c)

• We require air to breathe, as it contains the oxygen our bodies need.
• While food and water are vital for survival, they are not directly related to the process of breathing.
• Soil is not a requirement for breathing at all.
• In summary, without air, we cannot take in oxygen, which is crucial for our survival.

Ans: (d)

• The question asks for something that is not a sense organ.
• Ear, Eye, and Nose are all recognized as sense organs that help us perceive the world around us.
• On the other hand, the Hand is primarily a part of the body used for manipulation and grasping, not for sensing.

Ans: (b)

• The analogy compares the sound made by a lion, which is a roar, to the sound made by another animal.
• The correct animal that makes the sound bark is the dog.
• Other options like cat, snake, and parrot do not produce the sound bark.
• Thus, the answer is dog, as it is the animal that corresponds to the sound in the analogy.

Ans: (b)

• Paper is less dense than water, which means it can float.
• In contrast, a stone, key, and nail are all denser than water, causing them to sink.
• This property of materials is determined by their density compared to that of water.
• Thus, among the options, only paper does not sink.

Ans: (c)

• Fish are the only animals in this list that are specifically adapted to live in water.
• Unlike lions, elephants, and dogs, which are land animals, fish have gills that allow them to breathe underwater.
• This makes fish the correct choice when identifying a water-dwelling animal.

Ans: (c)

• The best way to dispose of a plastic bottle is to recycle it. This helps reduce waste and conserves resources.
• Throwing it in a river or burning it can cause environmental harm.
• Burying it in soil is not effective as it can take years to decompose.
• Recycling allows the plastic to be processed and made into new products, which is beneficial for the planet.

Ans: (c)

• Sun is the only option that is a natural source of light, as it emits light on its own.
• Other options like Candle, Torch, and Bulb are artificial sources that require a material or energy source to produce light.
• The Sun provides light and warmth, making it essential for life on Earth.
• Understanding the difference between natural and artificial light sources is important in various fields, including science and environmental studies.

Ans: (d)

• Water can be found in different states: solid (ice), liquid (water), and gas (water vapor).
• Each state has unique properties, but all are forms of water.
• Therefore, the correct answer is that water can exist in all of these states.
• This means that water is versatile and can change its form depending on temperature and pressure.

Ans: (b)

• When you see a "No Entry" sign, it clearly indicates that you are not allowed to enter that area.
• Ignoring this sign can lead to traffic violations and potential accidents.
• Always prioritize safety and follow road signs to ensure a smooth driving experience.
• Therefore, the correct action is to not enter the area marked by the sign.

Ans: (c)

• Fish cannot live in water is the incorrect statement. Fish are aquatic animals that thrive in water.
• In contrast, we need air to breathe, which is essential for human survival.
• Plants require sunlight for photosynthesis, which is how they produce their food.
• Additionally, the Sun is indeed a star, providing light and heat to our solar system.

Ans: (c)

• Planting trees is crucial for maintaining a clean environment as it helps in absorbing carbon dioxide and releasing oxygen.
• It also provides habitat for wildlife and prevents soil erosion.
• In contrast, options like littering, throwing garbage into rivers, and burning plastic waste contribute to pollution.
• Thus, planting trees is a positive action that supports a healthier ecosystem.

Ans: (c)

• Coal is classified as a non-renewable energy source because it takes millions of years to form and cannot be replenished in a short time frame.
• In contrast, solar energy, wind energy, and hydroelectric energy are all considered renewable because they are naturally replenished and can be used indefinitely.
• Using renewable sources helps reduce environmental impact and reliance on finite resources.
• Thus, coal stands out as the only option that is not renewable.

Ans: (b)

• Eating fast food often is considered unhealthy because it typically contains high levels of fats, sugars, and salt.
• In contrast, exercising regularly, washing hands before meals, and sleeping on time are all positive habits that contribute to good health.
• Healthy habits help maintain physical fitness, prevent illness, and promote overall well-being.
• Therefore, the option that does not represent a healthy habit is (b) Eating fast food often.

Ans: (a)
Delhi is the place where this Jantar Mantar is found.

Ans: (b)
The India Gate is a war memorial located in New Delhi. India Gate was constructed as a memorial to soldiers of the British Indian Army who died during the First World War.

Ans: (d)
There are 28 states in India and Victoria memorial is situated in Kolkata.

Ans: (b)
The best way to spend the holiday is to visit historical places.