Year 8 - Computing
Search engines and results rankings
Developing for the Web
Study Hub
Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit, pupils will explore the technologies that make up the internet and WWW. Starting with an exploration of the building blocks of the WWW, HTML, and CSS. They will construct a fully functioning website and discover how websites are catalogued for effective retrieval by search engines.
Lesson Summary
You will learn to explain how search engines find and rank web pages.
Key Notes
- A search engine is a catalogue of web pages.
- Search engines 'crawl' through the World Wide Web.
- Search engines select and rank results when web searches are made.
Vocabulary To Learn
- crawl: when a search engine automatically explores websites to collect information
- index: a big catalogue, where search engines store web page information so they can find it later
- ranking: the order search results appear in, based on how useful and relevant they are
Common Mistakes To Avoid
- Search engines search the whole internet live.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
A search engine is a catalogue of web pages. Search engines 'crawl' through the World Wide Web.
2. Define this computing term and give one practical example. 'crawl'
when a search engine automatically explores websites to collect information. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: Search engines search the whole internet live. Correction: Search engines use a pre-built index to deliver fast results.
More Lessons In This Unit
Browse all guides in the Year 8 Computing guide library.