|MadSci Network: General Biology|
Wow. That's a sort of big question. Scientists do a lot of things. Some scientists try to figure out how things work, like the weather. Other scientists try to find new or better ways of doing things, like using wind or water power to make electricity, or how to run our cars without using gasoline. Many scientists work closely with doctors to try to discover new medicines for illnesses that we do not yet have ways to cure. For some more examples of what scientists do, you might want to read these previous Mad Scientist answers: How are scientists creative? Chemistry careers Organic/Inorganic chemists Biochemistry jobs Research scientist jobs Zoology careers Astronomy careers Astronomy/Cosmology careers No matter what they are working on, though, scientists always try to find answers to "WHY?" and "HOW?"
Try the links in the MadSci Library for more information on General Biology.