EbscoHOST
Aah, EbscoHOST. This database has Periodical articles, science research, scholarly papers, and much more. This is your main place to go unless you are researching very early recorded history, but it's still worth a try.
Passwords are on Edline, click Cone Library, then click Password List. Then click All Student Reference Databases. Along with a theme change, you will be presented with a list of databases. I usually select a cocktail of Advanced Placement Source, MAS Ultra, Newspaper Source, Primary Search, and Topic Search, but there are many specified databases for various topics, including Science, Health, Environment, and Literature, among others. Feel free to read through the descriptions for these and add them if you like. Enter in some key words in the search bar. If you want to search for an exact phrase, put it in "quotation marks." Also, before clicking search, scroll down a bit and tick Full Text. This makes sure you get the actual document instead of an abstract.
ProQuest
ProQuest is a good resource for more historically focused papers. With its History Study Center and Historical Newspapers databases, it is worth your while to go there to find good information and/or primary sources.
Passwords are on Edline, click Cone Library, then click Password List and choose a database to search. Depending on which one you choose, you will get a different page. They all have search boxes front and center, mostly, so you will be able to find some good results.
CQ Researcher
CQ Researcher is a good place to find information on more modern topics. Things that are talked about on the news, things that are debated in major court cases, these are the things that will be found on this database. To sign in, click "Log In" at the top.
Passwords are on Edline, click Cone Library, then click Password List and search for your keywords in the search box in the center of the page. You will be given pages that delve in to the subject that they describe.