Clearly explains the different forms of energy and how they are transferred among people, machines, and the natural world, and includes activities that encourage budding scientists to make their own energy and see how it works. Simultaneous.[...]

An exceptionally moving story of triumph against all odds set during World War 2, from the acclaimed author of "Jefferson's Sons" and for fans of "Number the Stars."
Nine-year-old Ada has never left her one-room apartment. Her mother is too humiliated by Ada's twisted foot to let her outside. So[...]