2.2.1

Searching the World Wide Web

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Searching the World Wide Web

World Wide Web

World Wide Web

  • There is a huge amount of information on the World Wide Web.
  • Not all information is useful and some of it is wrong.
  • You need to know how to search well to make sure the information is high quality.
Search engines

Search engines

  • Google, Bing, DuckDuckGo, and Ecosia are examples of search engines.
  • Search engines work by searching for web pages.
    • Searching for web pages is called ‘crawling’.
Searching for matching words

Searching for matching words

  • When you type words into a search engine, the search engine looks for web pages.
  • Then, the search engine shows you a list of pages that match your words.
Choosing the page you want

Choosing the page you want

  • The search engine ranks (puts in order) the pages based on:
    • How closely your search matches the page.
    • The popularity of the page.
  • The page highest on the list may not be the best page for your search.
Jump to other topics
1

Using Computers

1.1

Computers as a Tool

1.1.1Uses of Computers1.1.2More Uses of Computers1.1.3Advantages of Information Technology1.1.4More Advantages of Information Technology
1.2

Data

1.2.1Storing Data1.2.2Databases1.2.3Sorting & Filtering Data1.2.4Interrogating Data
1.3

Plagiarism & Illegal Sharing

1.3.1Plagiarism1.3.2Copyrighted Content
2

Networks & the World Wide Web

2.1

Networks

2.1.1Parts of Networks2.1.2The Internet2.1.3The World Wide Web
2.2

Searching Online

2.2.1Searching the World Wide Web2.2.2Searching Tips2.2.3Reliable Information
2.3

Protecting Yourself Online

2.3.1Your Digital Footprint2.3.2Being Safe2.3.3Online Safety2.3.4Viruses2.3.5Malware2.3.6People Online2.3.7Your Feelings2.3.8Getting Help
3

Computational Thinking

3.1

Computational Thinking

3.1.1Computational Thinking3.1.2Decomposing Tasks3.1.3Algorithms (1/2)3.1.4Algorithms (2/2)3.1.5Logical Reasoning & Debugging
4

Computer Languages

4.1

Coding

4.1.1Code4.1.2Programs4.1.3Writing Programs4.1.4Writing Your Own Program: Input, Outputs, Design4.1.5Turning an Algorithm into an App (1/2)4.1.6Turning an Algorithm into an App (2/2)

Practice questions on Searching the World Wide Web

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  1. 1
    What do search engines search for?Multiple choice
  2. 2
    Choose the search engines: True / false
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The World Wide Web

Searching Tips