General Knowledge Class 5 - Science And-Technology Notes
Comprehensive study notes for Class 5 - Science And-Technology olympiad preparation
Science and Technology
Welcome to the chapter on Science and Technology for Class 5. In this chapter, you will learn about important inventions, discoveries, and how technology helps us in our daily life. By the end of this chapter, you will know about famous scientists, new gadgets, and the role of science and technology in making our world better!
Introduction
Science helps us understand the world around us. Technology uses science to create tools and machines that make life easier. Both are important for progress and comfort.
Famous Scientists and Their Discoveries
- Isaac Newton: Discovered gravity.
- Thomas Edison: Invented the electric bulb.
- Marie Curie: Discovered radium.
- Alexander Graham Bell: Invented the telephone.
- C.V. Raman: Famous Indian scientist known for the Raman Effect.
Important Inventions
- Aeroplane
- Computer
- Internet
- Mobile Phone
- Vaccines
How Technology Helps Us
- We use computers and smartphones to learn and communicate.
- Machines help doctors treat patients.
- Technology helps us travel faster by cars, trains, and planes.
- Robots help in factories and homes.
Recent Developments
- Electric cars are becoming popular.
- Smart watches and fitness bands track our health.
- Drones are used for photography and delivery.
- Artificial Intelligence (AI) is used in many apps and games.
Fun Activity: Science Around You!
Look for gadgets at home. Find out who invented them and how they help you. Share your findings with your class!
Summary
- Science and technology make our lives easier and better.
- Many inventions and discoveries have changed the world.
- New technology is being developed every day.
Practice Questions
- Who invented the telephone?
- Name one use of a computer.
- What is the Raman Effect?
- Name two recent technologies you use.
- Why is science important?
Challenge Yourself
- Find out about an Indian scientist and write two lines about their work.
- Draw and label a gadget you use every day.
Did You Know?
- The first computer was as big as a room!
- Vaccines help protect us from diseases.
Glossary
- Invention: A new tool or machine made by people.
- Discovery: Finding something new that already exists.
- Technology: Using science to make tools and solve problems.
- Artificial Intelligence (AI): Smart machines that can think and learn.
Answers to Practice Questions
- Alexander Graham Bell
- Learning, playing games, sending messages, etc.
- A scientific discovery by C.V. Raman about how light behaves.
- Smartphone, electric car, smart watch, etc.
- It helps us understand and improve the world.
Science and technology are changing our world—keep learning and exploring!