03. Short Answer Questions: Double Century

Q1: What is 100? Write two ways to show 100.
Ans: 
100 means one hundred. For example It can be shown as 10 bundles of 10 sticks or as 100 loose objects.

Q2: How many tens are there in 100?
Ans: There are 10 tens in 100.

Q3: Write the next number for each.

NumberNext Number
39__
63__
99__


Ans:

NumberNext Number
3940
6364
99100

Q4: Write two different ways to make 100.
Ans:

WayNumber Sentence
160 + 40 = 100
270 + 30 = 100

Q5: Fill in the blanks to make 100.
Ans:

Number SentenceAnswer
45 + ___ = 10055
___ + 25 = 10075
___ + 85 = 10015

Q6: Write the numbers from 101 to 105 in figures and words.
Ans:

NumberNumber Name
101One hundred one
102One hundred two
103One hundred three
104One hundred four
105One hundred five

Q7: Write the number made by 1 bundle of 100, 2 tens and 3 ones.
Ans: 
1 hundred, 2 tens and 3 ones make the number 123.

Q8: Write one more and one less than each number.

NumberOne LessOne More
___159___
___128___
___186___


Ans:

NumberOne LessOne More
160159161
129128130
187186188

Q9: Arrange the numbers in increasing order: 158, 150, 163.
Ans: 150, 158, 163.

Q10: Mark the numbers 110, 135 and 180 on a number line.
Ans: The numbers 110, 135 and 180 are placed correctly between 100 and 200 on the number line according to their values.

02. Short Answer Questions: Toy Joy

Q1: Name any four 3D shapes.
Ans: Four 3D shapes are cube, cuboid, cone and cylinder.

Q2: Write the name of the shape of each object.
Ans:

ObjectShape
DiceCube
MatchboxCuboid
Water bottleCylinder
Ice-cream coneCone

Q3: Which 3D shape has no edges and no corners?
Ans: A sphere has no edges and no corners.

Q4: Which 3D shapes have only flat faces?
Ans: Cube and cuboid have only flat faces.

Q5: Which 3D shapes have curved faces?
Ans: Cone, cylinder and sphere have curved faces.

Q6: Count the faces, edges and corners of a cube.
Ans:

PartNumber
Faces6
Edges12
Corners8

Note: Corners are also known as vertices.

Q7: A cone is placed on a cylinder, and the cylinder is placed on a cuboid. Write the position of each shape.
Ans: The cone is on top.
The cylinder is in the middle. 
The cuboid is at the bottom.

Q8: Name one 3D shape that is found the most in a classroom.
Ans: Cuboid is found the most because desks, books and cupboards are cuboid-shaped.

Q9: Look at a dice. What number is on the face opposite to 1?
Ans: The number opposite to 1 is 6 because the sum of opposite faces always equals 7 (1+6=7, 2+5=7, 3+4=7).

Q10: Join three cubes. Write the different shapes that can be made.
Ans: Three cubes can be joined to make a cuboid.

O1. Short Answer Questions: What’s in a Name?

Q1: How does making marks help while counting objects?
Ans: Making marks helps us count each object one by one. It ensures that no object is missed or counted more than once.

Q2: Why do we group objects while learning mathematics?
Ans: We group objects to understand them better by their common features. Grouping also makes counting and learning easier.

Q3: How can counting letters help us decide which name is longer? Explain with one example.
Ans: By counting the letters in each name, we can compare them. For example, “Elephant” is longer than “Ox” because it has more letters.

Q4: Write the names of five classmates. Find the longest and the shortest name.
Ans:

NameNumber of Letters
Riya4
Amit4
Rahul5
Sneha5
Priyanka8

Conclusion: Priyanka is the longest name. Riya and Amit are the shortest names.

Q5: Write the starting letters of your classmates’ names. Which starting letter is used the most?
Ans:

Starting LetterNumber of Names
R3
A2
S1

Conclusion: The letter R is used the most.

Q6: Write the number name of 56. How many letters does it have?
Ans: The number name of 56 is fifty-six. It has eight letters.

Q7: Find a number between 1 and 99 whose number name has two words and is close to 100. Write its number name.
Ans: The number is 99. Its number name is ninety-nine.

Q8: From the numbers 63 to 78, which number has the shortest number name?
Ans: Sixty-six has the shortest number name among these numbers.

Q9: Write the number names of 45, 58 and 62. Arrange these numbers in order from the shortest number name to the longest number name.
Ans:

NumberNumber NameNumber of Letters
45forty-five9
58fifty-eight10
62sixty-two8

Order: 62, 45, 58

Reason: The numbers are arranged by comparing the number of letters in their number names.

Q10: Make a table to show different hairstyles in your class. Which hairstyle is the most common?
Ans:

Hair StyleNumber of Children
Single plait6
Two ponytails5
Short hair7

Conclusion: Short hair is the most common hairstyle in the class.

20. Short Answer Questions: Invention of Wheel

Q1. What is a wheel?

Ans: A wheel is a round object that helps things move easily across the ground.

WheelsWheels

Q2. Why is the invention of the wheel important?

Ans: The wheel made it easier to travel and carry heavy things, helping people move faster and trade more.

Q3. Name two things we use today that have wheels.

Ans: Cars and bicycles have wheels.

Q4. How did people move heavy things before wheels were invented?

Ans: People rolled logs under items, used wooden carts, or dragged things on the ground.

Wooden CartWooden Cart

Q5. What were the first wheels used for?

Ans: The first wheels were used for making pottery.

Q6. What is the use of an axle in a wheel?

Ans: An axle is a rod that holds the wheel and helps it rotate smoothly.

Short Answer Questions: Invention of Wheel

Q7. Why is the wheel round in shape?

Ans: The round shape helps the wheel roll easily and saves energy.

Q8. How did wheels help in trade?

Ans: Wheels made it easier to carry goods over long distances, which helped people trade with others.

Q9. What kind of wheels did early people use?

Ans: They used heavy wheels made of solid wood.

Q10. What improvements were made to early wheels?

Ans: Spokes were added to make the wheels lighter and stronger.

Short Answer Questions: Invention of Wheel

Q11. How are modern wheels different from early wheels?

Ans: Modern wheels are smooth, light, and used in many things like toys, cars, and machines.

Q12. What is easier—rolling or sliding? Why?

Ans: Rolling is easier because it needs less effort and helps things move faster.

Q13. What new things were made after the wheel was invented?

Ans: Carts, cars, and bicycles were made after the invention of the wheel.

Q14. How do wheels help in building better cities?

Ans: Wheels helped people travel, trade, and connect, which made cities grow and improve.

Q15. Write one sentence to describe the importance of the wheel.

Ans: The wheel is one of the most important inventions that made life easier for everyone.

19. Short Answer Questions: Safety & First Aid

Q1. Why is knowing first aid important?
Ans: First aid helps us take care of small injuries quickly and make others feel better before they get full medical help.
First AidFirst Aid

Q2. Why is safety important?
Ans: Safety protects us from danger and accidents. It helps keep us and others safe and healthy.

Q3. Name two safety rules to follow at home.
Ans: Never play with fire or electric plugs, and be careful around the stove and sharp objects like knives and scissors.

Q4. What safety tips should you follow at school?
Ans: Don’t run inside the classroom, be careful on the stairs, and never touch things in the science lab without permission.

Q5. Why is it important to have a first aid kit at school?
Ans: A first aid kit helps treat small injuries like cuts or bruises right away.

Q6. How can you stay safe on the road?
Ans: Walk on footpaths, ride bicycles on the left side, wear helmets, and cross roads only at zebra crossings after looking carefully.
Safety on RoadSafety on Road

Q7. What should you do when playing games in the playground?
Ans: Follow the rules, don’t push or trip others, and play safely so everyone can have fun without getting hurt.

Q8. What are the first things to do when someone is injured?
Ans: Stay calm, find an adult, don’t move the injured person if you think they are badly hurt, and make them comfortable.

Q9. How do you treat a bleeding wound?
Ans: Wash the wound with clean water and put a bandage on it to stop the bleeding.

Bleeding woundBleeding wound

Q10. What should you do if someone has a burn?
Ans: Hold the burned area under cold running water to cool it down.

Q11. Why is sunlight important in a home?
Ans: Sunlight kills germs and helps keep the house clean and healthy.

Q12. How do windows and ventilators help in a house?
Ans: They let fresh air and sunlight come in, which keeps the air clean and healthy to breathe.

Q13. Why should rubbish bins be covered?
Ans: Covered bins keep flies and insects away, which helps stop the spread of germs and diseases.

Q14. What can happen if the kitchen and bathroom are not cleaned properly?
Ans: Germs can grow and cause sickness, so these places should always be kept clean.

Q15. What is the most important thing to remember about safety?
Ans: Safety should always be the top priority to protect ourselves and others from harm.

18. Short Answer Questions: World Around Me

Q1. Why does the sky look bright and blue in the morning?
Ans: The sky looks bright and blue because the sun is shining and sending light and warmth to the Earth. This light makes the sky appear blue during the day.

Day and Night SkyDay and Night Sky

Q2. What can you see in the sky at night?
Ans: At night, the sky becomes dark because the sun is not shining on our side of the Earth. We can see the moon and many tiny lights called stars shining in the dark sky.

Q3. How does the sky change on sunny and rainy days?
Ans: On sunny days, the sky is clear and blue, and the sun shines brightly. On rainy days, dark clouds cover the sky, making it look gray, and the sun hides behind the clouds while it rains.

Rainy and Sunny DaysRainy and Sunny Days

Q4. What is the solar system?
Ans: The solar system is like a big family where the sun is the center, and eight planets, along with moons and other objects, move around the sun in paths called orbits.

Q5. Can you name the eight planets in our solar system?
Ans: The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. They all orbit around the sun.

Solar SystemSolar System

Q6. Why is Earth special?
Ans: Earth is special because it is the only planet we know that has life like plants, animals, and people. It has water and air, which are important for living things.

Q7. What does the sun do for us?
Ans: The sun gives us warmth and light. Without the sun, it would be too cold for plants and animals to live, and there would be no daylight.

Q8. What is rotation?
Ans: Rotation means the Earth spins around like a top. This spinning takes about 24 hours and causes day and night because different parts of Earth face toward or away from the sun.

Rotation and RevolutionRotation and Revolution

Q9. What causes day and night on Earth?
Ans: When your part of Earth faces the sun, it is daytime and bright outside. When it turns away from the sun, it becomes night and dark.

Q10. What is revolution?
Ans: Revolution is when the Earth moves around the sun in a big circle. It takes about one year, or 365 days, for Earth to complete this trip.

Q11. Why do we have different seasons?
Ans: We have different seasons because as the Earth travels around the sun, the angle of sunlight changes, making some parts warmer or cooler at different times of the year.

SeasonsSeasons

Q12. What are the four main directions?
Ans: The four main directions are north, south, east, and west. They help us know which way to go and find places.

Q13. If you face the sun in the morning, which direction are you looking?
Ans: If you face the sun in the morning, you are looking east because the sun rises in the east.

Q14. When facing east in the morning, which directions are behind you, to your right, and to your left?
Ans: Behind you is west, your right side points to the south, and your left side points to the north.

Q15. What should you always do to learn more about the world?
Ans: You should always stay curious and keep exploring new things. This helps you learn and discover the many wonders around you.

17. Short Answer Questions: Understanding Directions

Q1. What are directions?
Ans: Directions are like magical arrows that tell us which way to go. They help us know where things are around us and guide us when we want to find a place.

Q2. What are the four main directions on a map?
Ans: The four main directions are North, South, East, and West. North is at the top of the map, South is at the bottom, East is on the right side, and West is on the left side.

Q3. How can you remember which way East is?
Ans: East is the direction where the sun rises in the morning. You can remember it because the words “East” and “Early” both start with the letter “E.”

Q4. What is the opposite direction of North?
Ans: The opposite of North is South. If you go the opposite way of North on a map, you will be going South, which is at the bottom of the map.

Q5. What do we call the side in front of us and the side behind us?
Ans: The side we are facing is called the front, and the side behind us is called the back.

Q6. What are the right and left sides?
Ans: When you turn to your right, the side you see is called the right side. When you turn to your left, the side you see is called the left side.

Q7. What is a map?
Ans: A map is a special picture that shows where different places are. It helps us understand where things are and how to find them.

Q8. How is a map arranged in terms of directions?
Ans: On a map, the top shows North, the bottom shows South, the right side shows East, and the left side shows West. This helps us know which way to go.

Q9. How can we use directions and landmarks to find a place?
Ans: We can use directions like left, right, and straight along with landmarks such as shops, trees, and buildings to know where to turn and guide us to the place we want to reach. Landmarks help us recognize important spots on the way.

Q10. Why are landmarks important in giving directions?
Ans: Landmarks are important because they help us know exactly where to turn or stop. They are special places or objects that we can easily recognize.

15. Short Answer Questions: Means of Communication

Q1. What is communication?
Ans: Communication is how we share our thoughts, feelings, and ideas with others. It includes talking, listening, and making sure we understand each other.
Q2. Why is communication important?
Ans: Communication helps us express our thoughts, understand others’ feelings, build relationships, solve problems, and learn new things.

Short Answer Questions: Means of CommunicationQ3. What are the four types of communication?
Ans: The four types are verbal (spoken words), non-verbal (gestures and expressions), written (letters and emails), and visual (pictures and charts).
Q4. What is verbal communication?
Ans: Verbal communication means sharing ideas by speaking, either face-to-face or over the phone.

Short Answer Questions: Means of CommunicationQ5. What are some examples of non-verbal communication?
Ans: Non-verbal communication includes gestures like waving, facial expressions like smiling, and body language.
Q6. How does written communication help us?
Ans: Written communication helps us send messages through letters, notes, emails, or texts, especially when we want to keep a record or send messages far away.

Short Answer Questions: Means of CommunicationQ7. What is visual communication?
Ans: Visual communication uses images, drawings, charts, or pictures to help explain ideas or information more clearly.
Q8. What are some means of communication we use today?
Ans: Today, we use telephones, computers, social media, emails, video calls, messaging apps, blogs, and vlogs to communicate.
Q9. How do telephones help in communication?
Ans: Telephones let us talk to people far away by voice and also send text messages. Mobile phones have extra features like internet and apps.
Q10. What are video conferencing tools used for?
Ans: Video conferencing tools like Zoom and Skype help people have meetings or classes online, allowing them to see and talk to each other from different places.

Short Answer Questions: Means of CommunicationQ11. How do social media platforms help us communicate?
Ans: Social media platforms let us share updates, photos, and messages with many people quickly, helping us stay connected with friends and family.
Q12. What is the difference between blogs and vlogs?
Ans: Blogs are written articles where people share their thoughts, while vlogs are videos where people share their experiences and stories.
Q13. What are messaging apps, and why do people use them?
Ans: Messaging apps like Telegram and Whatsapp let people send messages privately and securely, often faster than email or phone calls.

Short Answer Questions: Means of CommunicationQ14. Why is communication important for solving problems?
Ans: Communication helps people share ideas, understand each other, and work together to find solutions.
Q15. How has communication changed with technology?
Ans: Communication has become faster and easier with phones, internet, and apps, allowing us to talk and share with people all over the world.

14. Short Answer Questions: Services In Neighbourhood

Q1. What is a neighbourhood?
Ans: A neighbourhood is a small community or area in a city or town where people live close to each other. It has its own identity and places for people to use and enjoy.

NeighbourhoodNeighbourhood

Q2. What kinds of shops can you find in a market?
Ans: In a market, you can find grocery shops for food, medical shops for medicines, stationery shops for pencils and pens, and milk booths for milk and ice cream.

Q3. What is a park, and what can you do there?
Ans: A park is an outdoor area with trees, grass, and playgrounds where people can play, relax, and exercise. It has swings, slides, and seesaws.

ParkPark

Q4. What do you do at a post office?
Ans: At a post office, you can send and receive letters and packages. You can also buy stamps, postcards, and envelopes there.

Q5. What is the role of a hospital in a neighbourhood?
Ans: A hospital takes care of sick and injured people with doctors and nurses. It also has ambulances to take patients to the hospital quickly in emergencies.

Q6. What do police officers do in a police station?
Ans: Police officers keep people safe, maintain law and order, and control traffic on the roads.

Q7. Why do children go to school?
Ans: Children go to school to learn from teachers, play with friends, and learn good manners and habits.

SchoolSchool

Q8. What is a place of worship?
Ans: A place of worship, like a temple, is where people go to pray and connect with their religion. It is a peaceful and special place in the neighborhood.

Q9. What can you do at a restaurant?
Ans: At a restaurant, you can eat delicious food prepared by chefs. It’s a place to enjoy meals with family and friends.

Q10. Why is it important to keep parks clean?
Ans: Keeping parks clean helps everyone enjoy fresh air and a healthy, beautiful place to play and relax.

13. Short Answer Questions: Houses

Q1. What is a house?
Ans: A house is a place where people live. It keeps them safe and comfortable with rooms for sleeping, eating, and other activities.

Q2. What are the two main types of houses?
Ans: The two main types of houses are kutcha houses and pucca houses. Kutcha houses are made of natural materials like mud and straw, while pucca houses are made of strong materials like bricks and cement.

Q3. Where are kutcha houses mostly found and what are they made of?
Ans: Kutcha houses are mostly found in villages. They are made of straw, bamboo, mud, clay, and leaves.

Q4. What materials are pucca houses made from?
Ans: Pucca houses are made of bricks, cement, iron, steel, and glass. They are strong and durable.

Q5. Why do some houses have slanting roofs?
Ans: Houses have slanting roofs in hilly areas so that snow or rainwater does not collect on the roof.

Q6. Name some different rooms found in a house and what they are used for.
Ans: Some rooms are the living room for sitting and watching TV, dining room for eating, bedroom for sleeping, study room for studying, kitchen for cooking, and bathroom for bathing.

Q7. Why do houses have windows?
Ans: Houses have windows to let fresh air and sunlight come inside, making the house bright and airy.

Q8. What is an address and why is it important?
Ans: An address is a unique name or number given to a house. It helps people find and identify the house.

Q9. What is an igloo and where is it found?
Ans: An igloo is a dome-shaped house made of snow. It is found in very cold polar regions.

Q10. What are tents made of and where are they usually found?
Ans: Tents are made from fabric and are mostly found in deserts, where they protect people from the sun and wind.

Q11. What materials are mud houses and huts made of?
Ans: Mud houses and huts are made from mud and straw. They are common in villages and help keep the house cool.

Q12. What is an apartment?
Ans: An apartment is a small house inside a tall building, usually found in cities.

Q13. What is a bungalow and where are they usually located?
Ans: A bungalow is a big house built outside cities and needs a lot of space.

Q14. What are some qualities of a good house?
Ans: A good house is well-ventilated, clean, well-maintained, safe, and spacious.

Q15. Why is comfort important in a house?
Ans: Comfort is important because it makes living in the house enjoyable and keeps the family happy and healthy.