Energy is a vital part of our lives. It powers our computer, lights our home, and moves our car. It also costs a lot of money and pollutes our environment. In Energy: 25 Projects Investigate Why We Need Power and How We Get It, kids ages 912 learn about the history and science of the world's energy sources, from nonrenewable fossil fuels such as oil and natural gas to renewable sources such as solar and wind power. Sidebars and fun trivia break up the text, making it easily accessible and engaging, while hands-on projects encourage active learning. Requiring little adult supervision and using supplies commonly found in most households, activities range from constructing a battery to recreating an oil spill to see how difficult cleanup can be. By exploring the advantages and disadvantages of each energy source, kids will gain insight into the future of energy and its impact on our planet.