ICT

1. Which search site are you using? Google Let’s say your teacher tells you to find out whether the element mercury is toxic. 2. Start by typing in mercury and hitting the enter key. 3. How many Web pages were found? 508,000,000 4. Look over the description of the first few sites. What are they about? -The first site was about an australian website called //themercury//. -The second website was about a site called //mercurymarine// it's about different outdoor motors. -The third site led me to //wikipedia//, it explained about the mercury //element.// By now you may realize that the word mercury has more than one meaning. 5. Try adding another word to tell what about mercury really interests you. 6. Type in __mercury__ __element__. 7. How many Web pages were found? 55,300,000 8. Look over the description of the first few sites. What are they about? -The first site I did was //wikipedia// simple english it was explaining Mercury element in easier words for a younger reader. -The second website that I found was called //chemicalelements// it was about the name (Mercury), symbol(hg), boiling point (358.58 C) and colour (silver) of mercury energy. -The last website I found led me to a website called //chemicool// it was about the discovering of mercury. Although these sites might have the answer to your question, they might not. 9. Now try adding a third word. Type in mercury element toxic. 10. How many Web pages were found? 9,120,000

11. Look over the description of the first few sites. What are they about? Now you are getting somewhere! By now all the sites retrieved should help answer the question.

Looking at the Numbers 12. Compare the number of Web pages found for the three searches. What do they tell you about how the search engine does its work?

Use Synonyms (a word that means the same as another word)

Let's say you want to find out about living on the planet Mars. You think your keywords should be __planet__ __Mars__ __living__. 13. Put those three words to the search site. 14. How many Web pages were found? 15. Look over the description of the first few sites. What are they about Now think of synonyms for each keyword. Well, a planet is a planet. Mars is Mars. But other words might work just as well as living, such as coloninzing. 16. Put in planet Mars colonizing to the search site. 17.How many Web pages were found? 18. Look over the description of the first few sites. What are they about?

This is how to go into our class wiki.