NSO Sample Question Papers for Class 1

The NSO sample question papers for class 1 are comprehensive tests that cover a wide range of science topics such as Living and Non-living Things, Plants, Animals, Human Beings and Their Needs, Good Habits and Safety Rules, Air and Water, Weather, and The Sky. These papers consist of 35 multiple-choice questions, including 5 questions on logical reasoning, 25 questions on science (1 mark each), and 5 questions on the achiever section (2 marks each).

The total marks for the test are 40, and the duration of the test is 1 hour.

NSO Sample Question Paper With Answers

1. Select the other half of the figure shown below.

1.  A

2. B

3. C

4. D

Answer: 1. A

2. Which of the following is reverse arrangement of alphabets of the given word ?
                                                          ELEPHANT      

1. EELHPANT

2. ELEHPNAT

3. ELEHAPNT

4. TNAHPELE

Answer: 4. TNAHPELE

3. Select the shape to continue the pattern:

1. A

2. B

3. C

4. D

Answer: 3. C

4.  Identify the 7th chocolate bunny.

1. S

2. Q

3. R

4. T

Answer: 3. R

5. Tara is shorter than Mahika. Swati is taller than Mahika, but shorter than Anu. Who is the tallest?

1. Anu

2. Tara

3. Swati

4. Mahika

Answer: 1. Anu

6. Which of the following is NOT a living thing?

A) Tree

B) Rock

C) Dog

D) Bird

Answer: B) Rock

7. Which of the following animals live in burrows?

A) Elephants

B) Dolphins

C) Rabbits

D) Lions

Answer: C) Rabbits. Rabbits are one of the many animals that live in burrows. One unique feature of burrowing animals is that they have adaptations such as strong claws or digging abilities that help them to dig their burrows. These burrows serve as homes where they can hide from predators, keep cool in hot weather, and stay warm in cold weather.

8. Which of the following animals is known as the "ship of the desert" because it can travel long distances without water?

A) Lion

B) Tiger

C) Camel

D) Elephant

Answer: C) Camel. Camels are known as the "ship of the desert" because they are well adapted to living in arid regions, where water is scarce. They can go several days without water and can store large amounts of water in their humps. In addition, camels have thick fur that helps to protect them from the scorching sun during the day and keep them warm at night.

9. Mr. Johnson, a gardener, noticed that honey bees were visiting the flowers in his garden and collecting something sweet. What do you think the honey bees were collecting?

A. Water

B. Soil

C. Nectar

D. Seeds

Correct answer: C. Nectar
Explanation: Honey bees are important pollinators that help plants reproduce by transferring pollen from flower to flower. As they visit flowers, they also collect nectar, a sweet liquid produced by flowers that attracts pollinators. Nectar is an important source of food for honey bees, which they use to make honey to feed their colonies. Gardeners often plant flowers that produce nectar to attract pollinators like honey bees to their gardens. Therefore, the correct answer is C. Nectar.

10. Mrs. Singh noticed that the river near her house was getting dirty and polluted with soap and detergents. What is the name of the process where soap and detergents pollute the river?

A. Boiling

B. Heating

C. Evaporating

D. Runoff

Correct answer: D. Runoff
Explanation: When people wash their clothes by the riverside, soap and detergent residues can wash into the river with the water used for washing. This process is called runoff, which is the movement of water over the surface of the land that can carry pollutants into the river. These pollutants can cause harm to the aquatic life and also affect people who rely on the river for drinking water or irrigation. Therefore, the correct answer is D. Runoff.

11. What is a lotus plant?

a) A tree

b) A bush

c) A water plant

d) A desert plant

 Correct answer: c. A water plant

12.  What color are lotus flowers?

a) Red

b) Yellow

c) Blue

d) Pink

 Correct answer : d . Pink

13.  Which of the following is a unique feature of elephants?

a) They have long tails

b) They have fur all over their bodies

c) They have long trunks

d) They have wings

 Answer: c) They have long trunks

14. How do elephants communicate with each other?

a) By singing songs

b) By dancing

c) By trumpeting

d) By writing letters

Answer: c) By trumpeting

15.  What is the purpose of tiger stripes?

a) To help tigers see better

b) To help tigers breathe

c) To help tigers hunt and catch prey

d) To help tigers swim

Answer: c) To help tigers hunt and catch prey

16. Why do tigers have stripes?

a) To make them look cute

b) To help them blend in with their surroundings

c) To scare away other animals

d) To help them fly

Answer: b) To help them blend in with their surroundings

17. What color are tiger stripes?

a) White

b) Black

c) Orange

d) All of the above

Answer: b) Black

18. Mr. Kumar noticed that the air in his city was getting dirty and dark with a lot of smoke coming from the factories nearby. What is the name of the black substance that comes out of factory smoke and makes the air dirty?

A. Oxygen

B. Vapor

C. Soot

D. Water

Correct answer: C. Soot
Explanation: Factory smoke can release a dark substance called soot, which is a type of particulate matter that can make the air dirty and dark. Soot is produced when fossil fuels are burned, such as in the combustion processes of factories and power plants. It can have negative health effects, especially on people with respiratory problems like asthma. Therefore, the correct answer is C. Soot.

19. Which of the following animals makes its home in tree holes, and is known for its ability to turn its head almost all the way around?

A) Squirrel

B) Owl

C) Raccoon

D) Deer

Answer: B) Owl. Owls are one of the many animals that live in tree holes. They are nocturnal and have excellent night vision, which helps them to hunt for prey such as rodents and insects. One unique feature of owls is that they can turn their head almost all the way around, up to 270 degrees, allowing them to see in all directions without having to move their body. This makes them efficient hunters and helps them to avoid predators.

20. What is a cyclone?

A) A type of airplane

B) A type of flower

C) A type of storm

D) A type of animal

Answer: C) A type of storm

21. Sarah found a plant in the garden with leaves that were shiny and smooth. Why do you think the leaves looked like this?

A. Because they were dirty

B. Because they were wet

C. Because they were healthy

D. Because they were old

Correct answer: C. Because they were healthy
Explanation: Shiny and smooth leaves are typically an indicator of a healthy plant. Dirty or old leaves may appear dull or discolored, and wet leaves may have a glossy appearance due to the presence of water droplets. Therefore, the correct answer is C. Because they were healthy.

22. Sarah found a climber plant in the garden with long, thin stems that wrapped around other plants. Why do you think the stems looked like this?

A. Because they were weak

B. Because they were old

C. Because they were healthy

D. Because they were short

Correct answer: A. Because they were weak
Explanation: Climber plants have long, thin stems that wrap around other plants or structures in order to support themselves. This adaptation allows them to reach sunlight and grow taller. The stems of climber plants are typically weaker than those of other plants since they are designed to be flexible and wrap around other objects. Therefore, the correct answer is A. Because they were weak.

23. Sarah saw a pumpkin at the farmer's market that was large and round with a bright orange color. Why do you think the pumpkin looked like this?

A. Because it was small

B. Because it was green

C. Because it was unhealthy

D. Because it was ripe

Correct answer: D. Because it was ripe
Explanation: Pumpkins are a type of fruit that are typically harvested in the fall. When they are fully ripe, they have a bright orange color, are large and round in shape, and have a hard exterior. Pumpkins are also known for being very nutritious, as they are high in vitamins A and C, and are a good source of fiber. Additionally, pumpkins are often used in holiday traditions, such as Halloween and Thanksgiving, where they are carved into jack-o-lanterns or used to make pumpkin pie. Therefore, the correct answer is D. Because it was ripe.

24. A little girl is learning about the importance of saving water. What activity should she NOT do as it wastes water?

A) Turning off the tap while brushing her teeth.

B) Taking a shower instead of a bath.

C) Leaving the tap running while washing dishes.

D) Using a bucket to water plants instead of a hose.

Answer: C) Leaving the tap running while washing dishes. Wasting water is not good for the environment and conserving water is an important responsibility. Leaving the tap running while washing dishes wastes a lot of water. Option A, B, and D are all water-saving practices as they help to reduce water consumption. Turning off the tap while brushing teeth, taking a shower instead of a bath, and using a bucket instead of a hose to water plants are all simple steps that can help to save water.

25. A little boy is thirsty and wants to drink water. What is a safe source of water for him to drink?

A) Water from a river or pond.

B) Water from a tap or a well.

C) Water from a swimming pool.

D) Water from a garden hose.

Answer: B) Water from a tap or a well. Drinking safe and clean water is important for maintaining good health. Water from a tap or a well is treated and filtered to remove harmful bacteria and germs, making it safe for drinking. Water from a river or pond may contain harmful bacteria, parasites, and pollutants that can cause water-borne diseases. Water from a swimming pool or a garden hose is not meant for drinking and may contain harmful chemicals.

26. A little girl is using a staircase to climb up to her house. What should she NOT do while using the staircase?

A) Walk up the stairs slowly.

B) Hold on to the railing for support.

C) Walk carefully and watch her step.

D) Play or jump on the stairs.

Answer: D) Play or jump on the stairs. Staircases can be dangerous if not used properly.

27. A little girl is waiting at a pedestrian crossing and sees a signal light ahead with three different colors. What does each color mean?

A) Red means stop, yellow means slow down, and green means go.

B) Red means go, yellow means speed up, and green means stop.

C) Red means slow down, yellow means go, and green means stop.

D) Red means go, yellow means stop, and green means slow down.

Answer: A) Red means stop, yellow means slow down, and green means go. This is a universal traffic signal color code and is followed in most countries. Option B and D are incorrect and can lead to accidents if followed. Option C is also incorrect as it does not follow the traffic rules. It is important to follow traffic signals and ensure road safety for oneself and others.

28. A little boy wants to stay healthy and fit. What activity should he do regularly?

A) Watch TV for long hours.

B) Eat junk food and sugary drinks.

C) Play outdoor games like basketball or soccer.

D) Sleep for most of the day.

Answer: C) Play outdoor games like basketball or soccer. Regular physical activity is important for maintaining good health and fitness. Playing outdoor games like basketball or soccer can help in building strength, improving coordination, and boosting immunity. Option A and D are not recommended as watching TV for long hours or sleeping for most of the day can lead to a sedentary lifestyle and can have negative effects on health. Option B is also not recommended as it can lead to health problems like obesity, diabetes, and heart disease.

29. A little girl is hungry and sees some food with flies on it. What should the little girl do next?

A) Eat the food, as flies are harmless.

B) Brush the flies away and eat the food.

C) Throw away the food, as it is not safe to eat.

D) Cook the food again to kill any germs.

Answer: C) Throw away the food, as it is not safe to eat. Flies can carry harmful bacteria and germs that can cause food poisoning and other health issues. It is important to practice good food hygiene and safety by not eating food with flies on it. Option A and B are not recommended as they can lead to health problems. Option D is not relevant in this case, as cooking the food again will not necessarily remove any germs that the flies may have left on the food.

30. A little boy is walking near a busy road and sees a signal light ahead.
What should the little boy do next?

A) Ignore the signal light and cross the road quickly.

B) Wait for a few seconds and then cross the road, regardless of the signal light.

C) Look both ways before crossing the road and follow the instructions of the signal light.

D) Ask a stranger to help him cross the road safely.

Answer: C) Look both ways before crossing the road and follow the instructions of the signal light. Signal lights are important for road safety and should be followed by all pedestrians and drivers. It is important for the little boy to look both ways before crossing the road, even if the signal light is green. Option A is not recommended as it can be dangerous to ignore the signal light and cross the road quickly, as there could be oncoming traffic. Option B is also not recommended as it can be risky to cross the road without taking note of the signal light. Option D involves trusting a stranger, which can be unsafe.

31. A little girl feels hungry and wants to eat some food. What should the little girl do next?

A) Wait for a few hours until she is really hungry before eating.

B) Drink a glass of water and ignore her hunger pangs.

C) Ask her parents or a trusted adult for some healthy food to eat.

D) Go to sleep and forget about her hunger.

Answer: C) Ask her parents or a trusted adult for some healthy food to eat. When a person feels hungry, it is important to eat something nutritious to provide the body with the energy and nutrients it needs. Waiting for too long to eat can cause dizziness, weakness, and other health issues. Drinking water can help to some extent, but it will not satisfy hunger completely. Option D is not recommended as it is not healthy to skip meals or ignore hunger. Option C is the best choice as it involves seeking help from a responsible adult who can provide the little girl with a healthy food option.

32. Lucy was excited to go outside and play. She put on her favorite dress and ran out to the backyard. Suddenly, it started to rain! Lucy ran back inside, but her dress was soaking wet. ​​​

What could she have worn to stay dry?

A) Swimwear

B) Winter coat

C) Raincoat

D) Sun hat

Answer: C) Raincoat

33. A little boy is flying a kite on a sunny day when he suddenly notices that the sky is getting dark and there are strong winds blowing.
What should the little boy do next?

A) Keep flying the kite and enjoy the windy weather.

B) Run to a nearby tree and hide under it until the winds die down.

C) Immediately bring down the kite and seek shelter indoors.

D) Ask a friend to hold the kite while he takes a break.

Answer: C) Immediately bring down the kite and seek shelter indoors. The darkening of the sky and strong winds could be signs of an approaching storm or other weather event that could be dangerous for the little boy to be outside in. It is important for him to stop flying the kite and seek shelter indoors to protect himself from the weather. Option A is not safe as the strong winds can make the kite uncontrollable, which could cause harm to the boy and others nearby. Option B is also not recommended as standing under a tree during a storm can be dangerous due to the risk of falling branches or lightning strikes. Option D does not prioritize the boy's safety and does not address the potential danger posed by the changing weather conditions.

34. A little boy goes to a zoo and sees a slow-moving animal with a hard shell on its back. It has a long neck and legs that look like stumps.
It also has a pointed beak that it uses to eat leaves and fruits.

What animal did the little boy most likely see?

A) A rabbit

B) A tortoise

C) A kangaroo

D) A duck

Answer: B) A tortoise. Tortoises are slow-moving animals with hard shells on their backs that help protect them from predators. They have a long neck and legs that look like stumps, and a pointed beak that they use to eat leaves and fruits. In contrast, rabbits are small hopping animals that do not have shells and do not eat leaves or fruits exclusively. Kangaroos are hopping animals with long, powerful legs, and ducks are birds that swim in the water. The little boy saw the tortoise at the zoo, which is a place where people can go to see many different kinds of animals.

Studying NSO Sample Papers for Class 1 can provide several benefits to students preparing for the Science Olympiad Test. Firstly, solving these sample papers can give students an idea of how the actual exams will be and create an environment similar to that of the final Olympiads. This can help students prepare better and feel more confident on the day of the exam.

Regularly solving NSO Sample Papers for Class 1 can also improve a student's problem-solving abilities and familiarity with the exam format. Students can understand how much time they would need to finish the entire paper after completing the sample papers on a regular basis, which can help them manage their time better during the actual exam.

Another benefit of studying NSO Sample Papers for Class 1 is that it can help students memorize the syllabus better by regularly reviewing the topics covered in the test. Additionally, by taking regular sample tests, students can boost their confidence and improve their exam-taking skills, allowing them to attempt exams in a better way.

In summary, studying NSO Sample Papers for Class 1 can provide students with a range of benefits, including better exam preparation, improved problem-solving abilities, and increased confidence. Regular practice of these sample papers can help students perform better on the day of the exam and achieve better results.