Explore the layers of the ocean! Students will learn about the animals and plants that live in the various zones: the sunlit zone, the twilight zone, the midnig
A page-turning novel that is also an exploration of the great philosophical concepts of Western thought, Jostein Gaarder's Sophie's World has fired the imaginat
Explore the layers of the ocean! Students will learn about the animals and plants that live in the various zones: the sunlit zone, the twilight zone, the midnig
A comprehensive account of how energy has shaped society throughout history, from pre-agricultural foraging societies through today's fossil fuel–driven civil