"Strap in for a journey to the center of the Earth--and watch out for volcanoes! Readers are in for a fiery ride as they explore geothermal energy and its technologies, both past and future. On the way, readers will take a dip in some of Mother Nature's personal hot tubs: Blue Lagoon hot spring in Iceland, the Qin Dynasty Pool, Yellowstone geysers, and more! Stunning photographs of these high-interest natural phenomena are sure to capture even reluctant readers' attention. Erupting with fun fact boxes that zoom in on details, this sizzling volume will be a popular addition to any science library."-- From publisher website.