Computer

The Internet

Class 3

🎯 Learning Objectives

📖 Let Us Begin!

Sita's grandmother lives in a village in Rajasthan. Sita lives in Mumbai. They cannot meet every day, but they can talk face-to-face using a video call on the computer! How is this possible? Because of the internet!

The internet connects computers all over the world. It is like a huge invisible road that carries information from one computer to another — whether they are in the same city or on the other side of the world.

What is the Internet?

The internet is a giant network that connects millions of computers around the world. Through the internet, computers can share information, send messages, and communicate with each other.

Think about it: Imagine a huge web of roads connecting every city and village in India — and then the whole world. The internet is like that, but for computers and information!

What Can We Do on the Internet?

ActivityWhat it meansExample
SearchFind information on any topicArjun searches "capital of India" and finds the answer instantly
EmailSend and receive messages electronicallyMeena's teacher sends homework instructions by email
Watch VideosView educational or entertainment videosRavi watches a science experiment video for his project
Online LearningStudy using websites and appsSita uses an online platform to practise maths
Video CallsSee and talk to people far awayArjun video calls his cousin in Kolkata

What is a Browser?

To use the internet, we need a special program called a browser. A browser is a program that lets us visit websites and view information on the internet.

Common Browsers

Google Chrome — The most widely used browser. Has a colourful circle logo.

Mozilla Firefox — A popular browser with an orange fox logo.

Microsoft Edge — Comes built into Windows computers.

All browsers do the same job — they help you visit websites on the internet.

Websites and Web Addresses

A website is a collection of pages on the internet about a particular topic or organisation. Every website has a unique address called a URL (Uniform Resource Locator).

Examples of Web Addresses (URLs)

www.google.com — Google's search website

www.ncert.nic.in — NCERT's official website for Indian students

www.youtube.com — YouTube's video website

You type the URL in the address bar at the top of the browser to visit a website.

Safe Internet Use Rules for Children

Internet Safety Rules

Rule 1: Never share your full name, address, phone number, or school name with strangers online.

Rule 2: Always ask a parent or teacher before visiting a new website.

Rule 3: Do not talk to strangers on the internet.

Rule 4: If you see something that makes you uncomfortable, tell a trusted adult immediately.

Rule 5: Do not spend too much time on the internet — take breaks and play outside too!

📝 Key Words

WordMeaning
InternetA giant network connecting millions of computers worldwide
BrowserA program used to visit websites on the internet
WebsiteA collection of pages on the internet about a topic
URLUniform Resource Locator — the address of a website
EmailElectronic mail — messages sent over the internet
NetworkA group of computers connected together to share information
⭐ Key Points to Remember

✏️ Practice Questions

A. Fill in the Blanks
1. The internet is a huge connecting computers all over the world.
2. A is a program used to visit websites on the internet.
3. The address of a website is called a .
4. Google Chrome and Mozilla Firefox are examples of .
5. We should never share our information with strangers online.
B. Multiple Choice Questions
1. What is the internet?
(a) A computer game(b) A network of computers(c) A type of printer
2. Which of these is a browser?
(a) MS Paint(b) Google Chrome(c) Keyboard
3. What should you do if you see something uncomfortable online?
(a) Ignore it(b) Tell a trusted adult(c) Share it with friends
C. Short Answer
1. What is the internet? Write one sentence.
2. Name two things you can do on the internet.
3. Write two internet safety rules for children.
Internet Safety Poster

In your notebook, draw a poster about "Safe Internet Use". Include at least three safety rules. Decorate your poster with drawings of a computer, a lock (for safety), and a smiley face. Write a title at the top: "Stay Safe Online!"

Want to use this as a worksheet? Switch to the A4 printable view.

Learning Objectives
What is the Internet?

The internet is a giant network that connects millions of computers around the world. Through the internet, computers can share information, send messages, and communicate with each other. It is like a huge invisible road that carries information from one computer to another.

What Can We Do on the Internet?
ActivityExample
Search for informationArjun searches "capital of India"
Send and receive emailsMeena's teacher sends homework by email
Watch educational videosRavi watches a science experiment video
Online learningSita practises maths on an online platform
Video callsArjun video calls his cousin in Kolkata
Browser, Website, and URL

A browser is a program used to visit websites. Examples: Google Chrome, Mozilla Firefox, Microsoft Edge.

A website is a collection of pages on the internet. Every website has a unique address called a URL.

Example URLs: www.google.com, www.ncert.nic.in, www.youtube.com

Internet Safety Rules

1. Never share your name, address, phone number, or school name with strangers online.

2. Always ask a parent or teacher before visiting a new website.

3. Do not talk to strangers on the internet.

4. If you see something uncomfortable, tell a trusted adult immediately.

5. Do not spend too much time online -- take breaks and play outside!

Key Words
WordMeaning
InternetA giant network connecting millions of computers worldwide
BrowserA program used to visit websites on the internet
WebsiteA collection of pages on the internet about a topic
URLThe address of a website
EmailElectronic mail -- messages sent over the internet
Key Points to Remember
A. Fill in the Blanks
  1. The internet is a huge connecting computers all over the world.
  2. A is a program used to visit websites on the internet.
  3. The address of a website is called a .
  4. Google Chrome and Mozilla Firefox are examples of .
  5. We should never share our information with strangers online.
B. Multiple Choice Questions
  1. What is the internet?
    (a) A computer game(b) A network of computers(c) A type of printer
  2. Which of these is a browser?
    (a) MS Paint(b) Google Chrome(c) Keyboard
  3. What should you do if you see something uncomfortable online?
    (a) Ignore it(b) Tell a trusted adult(c) Share it with friends
C. Short Answer
  1. What is the internet? Write one sentence.
  2. Name two things you can do on the internet.
  3. Write two internet safety rules for children.
Internet Safety Poster

In the box below, draw a poster about "Safe Internet Use". Include at least three safety rules. Write a title at the top: "Stay Safe Online!"