The companion to the popular and award-winning A Hundred Billion Trillion Stars. This captivating and educational picture book from Seth Fishman and Isabel Greenberg introduces young readers to basic facts about energy and the human body. Fun, informative and accessible, Power Up is perfect for classroom and family sharing. A great title to read along with Andrea Beaty’s Ada Twist, Scientist and Oliver Jeffers’s Here We Are. Did you know there is enough energy in your pinkie finger to power an entire city? And that everything you do—running, jumping, playing, and exploring—uses that same energy inside of you?