If this were "Jeopardy," the clue would be "food, batteries, gasoline, wind, and lightning." The answer, in the form of a question of course, would be "What are forms of energy?" Yet, the more fundamental - and important - question should be exactly "What is energy?" In fact, it is apparently a question that is on the minds of thousands of children from around the world. So much so that the Alan Alda Center for Communicating Science at Stony Brook University has announced that "What is Energy?" is the question being issued to scientists across the globe for The Flame Challenge 2017.