Use concept mapping at the beginning of the research process to help you find different aspects of your topic that you may want to focus on. You can use online reference sources to help you find different concepts and keywords related to your research topic. You do not need to include every single possible angle of your topic. Your concept map for one topic will probably look different from another person's concept map on the same topic. You can continue to build on your concept map throughout the research process. 

For example, if you were interested in doing a project on Amazon River Dolphins, you might make a concept map like the one below:

Image of a concept map regarding Amazon River Dolphins.

From this concept map, you might decide to do a project comparing the conservation efforts for the Amazon river dolphin to those for a similar species, the Ganges River dolphin.