Get complete, authentic, textbook-grounded solutions for DAV Class 4 Hands-On: A Book of ICT Chapter 8: Internet as A Pool of Information. Covers web browsing, search engines, downloading files, research activities on root types and flower uses, and the complete solved crossword puzzle.
Chapter Overview: Exploring the Internet
Core Internet Concepts in Chapter 8:
- Internet: A worldwide network of interconnected computers communicating with each other.
- World Wide Web (WWW): A collection of millions of digital pages of information, pictures, videos, and sounds.
- Web Browser: Software used to access the internet (Google Chrome, Mozilla Firefox, Microsoft Edge).
- Search Engine: A specialized website that searches and retrieves information on the web (Google, Bing, Yahoo).
- Keywords: Specific phrases typed in search boxes to find targeted information.
- Downloading: The process of copying or transferring files, documents, or media from an internet server to your computer.
Activity 1 (a): Research on Types of Roots (Textbook Page 129)
Task: Search the information on types of roots, copy and paste the information obtained in a Writer document:
Step-by-Step Lab Procedure:
- Open a web browser (e.g., Google Chrome) by double-clicking its desktop icon.
- In the address bar, type
www.google.comand press Enter. - In the search bar, type keywords: types of roots tap root fibrous root science and press Enter.
- From the search results, click a reliable educational page. Select the text using the mouse, right-click and choose Copy (or press
Ctrl + C). - Open LibreOffice Writer, right-click on the blank page and select Paste (or press
Ctrl + V). - Format headings with Bold and save the file with the name
Types_of_Roots.odt(Ctrl + S).
Educational Summary Prepared for Document:
| Root Type | Key Characteristics | Plant Examples |
|---|---|---|
| Tap Root | A single thick main root growing vertically deep into soil, with smaller lateral branching roots. | Carrot, Radish, Mustard, Neem, Mango tree. |
| Fibrous Root | A cluster of numerous thin, thread-like roots of equal size originating from the base of the stem. | Grass, Wheat, Rice, Maize, Onion. |
Activity 1 (b): Download PDF on Uses of Flowers (Textbook Page 129)
Task: Search and download a PDF file having information about uses of flowers:
Step-by-Step Downloading Guide:
- Open Google Search in your web browser.
- In the search box, enter the specific query:
uses of flowers filetype:pdfand press Enter. - The search results will show documents with a [PDF] tag next to their titles.
- Click on a suitable school worksheet or article link. The PDF will open inside the browser viewer.
- Click the Download icon (downward arrow) in the top-right toolbar or press
Ctrl + S. - Choose your school folder (e.g.,
DocumentsClass4_Science), name the fileUses_of_Flowers.pdf, and click Save.
Summary of Floral Uses: 1. Decoration and religious worship (Marigold, Rose), 2. Perfumes and scents (Jasmine, Lavender), 3. Natural dyes and colors (Saffron, Hibiscus), 4. Food and honey production (Cauliflower, nectar for bees), 5. Medicines and herbal oils (Chamomile, Clove).
Assessment Activity 2: Crossword Puzzle (Textbook Page 129-130)
Question: Solve the following crossword according to the given clues:
| Clue No. & Direction | Crossword Clue | Solved Answer | Letter Count |
|---|---|---|---|
| Across 5 | Website that helps in searching information on internet | SEARCH ENGINE | 12 letters |
| Across 8 | Face to face communication among people at different locations | VIDEO CONFERENCING | 18 letters |
| Down 1 | Used for online chat | INSTANT MESSAGING | 16 letters |
| Down 2 | Phrase using which we search information on internet | KEYWORDS | 8 letters |
| Down 3 | Term used to obtain the information from internet to our computer | DOWNLOADING | 11 letters |
| Down 4 | Search engine by Microsoft | BING | 4 letters |
| Down 6 | Most popular search engine | 6 letters | |
| Down 7 | Sending and receiving the messages in electronic form | 5 letters |
Frequently Asked Questions (FAQ)
Q1: What is the difference between a Web Browser and a Search Engine?
Ans: A web browser (e.g., Google Chrome) is an application software installed on your computer to open websites, whereas a search engine (e.g., Google, Bing) is a website used to search information on the web.
Q2: What is the full form of URL?
Ans: URL stands for Uniform Resource Locator, which is the unique web address of a web page.