Q1. What is a wheel?
Ans: A wheel is a round object that helps things move easily across the ground.
Wheels
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.
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.
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.
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.