You might need to learn a little bit more about your topic before you really start researching it.
Gathering some background information can help you:
Read over your assignment and make sure you understand what it is you need to do. See if you can answer the following questions:
If you are picking your own topic, you might get ideas from:
Check your assignment to see if there are any guidelines related to what your topic can be. Check with your instructor if you have questions about whether a certain topic is acceptable for an assignment.
When choosing keywords to use for searching, think about your topic. What are the main ideas that you are interested in? What words could be used to describe these ideas?
Example:
If your topic is Chemistry of Green Technologies, consider some of these keywords: