Acadia Greene is at it again. In the summer she used science to figure out who was raiding her blueberry bushes. Now she's leading a campaign to clean up a local pond; figuring out why leaves change color; learning about time zones and germs; and discovering why we might all be drinking dinosaur pee. "Conduct an experiment," her parents tell her whenever she has a new mystery to solve. "Use the scientific method." So Acadia does science. And so can you. Source other than Library of Congress.