My favorite science experience is getting an unexpected result to an experiment. Sure, it is great to develop a hypothesis (hi poth uh sis)and test it in an experiment. A hypothesis is an idea that has not been proven yet. After you test it, then you may get results that show your hypothesis was correct. But sometimes you get results that are surprising and interesting— results that teach you something totally new. These unexpected results can be very exciting. They help open up your imagination to unique thoughts and lead to the development of new hypotheses, new experiments, and new insights about the natural world.