1. How do search engines work?
How do you use a search engine?
Domain Names.
Search Engines
How do search engines work?
Hoax, Spoof and Bias.

2. How do search engines work?
Search engines use something that’s called a web crawler. All a web crawler does is looks for web pages that have your key words and how many times they have them, they then rank them from the usage of your key words. Usually the top one is the best for your results.

3. Keywords & Boolean Logic
Keywords are important to use when you are searching on the web. It is important that you use the right key words like if you are searching for the capital of Australia you would only have to put the words capital Australia. In a similar way you could search for Roman emperor for a project but you had done a whole lesson on Caesar then you would put Roman emperor- Caesar then you would get Roman emperor but not Caesar.
Boolean Logic involves words including AND, OR and NOT. When you are using Boolean logic the word OR expands your search and the word AND narrows the search.

4. Domain names.com
Domain names are the couple of letters at the end of the ULR (Uniform Resource Locator), it tells you about the website in just a couple of letters.
.gov=Government. This means only the people associated with the government can use this domain. It is illegal for anyone else to use it.
.net=Internet Network Provider. This provides the internet provider.
.com=Company. This means it is a website for companies world wide.
/kids=Education for Kids. This means it is safe for kids.
.edu=Education Establishment. This is for places who teach like university's. It is illegal to use this if you aren’t an educational establishment.
.ac.uk= Academic. This again means that it is only for academic websites
.org=Organisation. This is for organisations like the RSPCA.

5. Hoax, Spoof and Bias.
Beware of Hoax and Bias sites because they might give you wrong information so you should always check another site to see if your information is correct. Wikipedia is not always correct because anyone can add to it and may be bias.
There also might be spoofs which are websites that are made up for fun, hoax's which are quite similar but they are fake.
For example look at this spoof website : Dog Island