ICT

1. Which search site are you using? :Bing 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?:175,000,000  4. Look over the description of the first few sites. What are they about? Element,Planet, Luxury Cars,Energy company and Marin company.

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? 21,800,000 8. Look over the description of the first few sites. What are they about?Element 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?

Bing was (4,080,000) (Google was 6,620,000) 

11. Look over the description of the first few sites. What are they about?

Toxic mercury and murcury in the enviroment

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? When I typed in mercury I got 175,000,000 pages when I typed in mercury element I got 21,800,000 When I typed in mercury element toxic I got 4,080,000 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?26,100,000 15. Look over the description of the first few sites. What are they about E-Bay living planet, comparing earth to mars, is there life on mars 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?89,700

18. Look over the description of the first few sites. What are they about? are there marsians,software downloads