Wendy Pfeffer describes the amazing metamorphosis from tiny, jelly-like egg, to little fishy tadpole, to great big bullfrog. Holly Keller has created the archetypal frog pond and we see it through the seasons as the tadpoles grow legs and lungs and eventually hop onto land–bullfrogs at last. Full color. Baby/Preschool.
Archive for the ‘Science & Technology’
How Mountains Are Made
Discusses how mountains are created and eroded, describes the changes in the earth’s surface and how weather plays a role in their size and shape.
Earth Science: Geology
Workbook exercises and experiments guide the user to explore and understand the basic concepts of geology, oceanography and weather, the planets, and space.
Switch On, Switch Off
The ‘magic’ of a light switch is made accessible to everyone with this crystal-clear introduction to electricity, from the generator to the individual light bulb. Includes an experiment on how to make electricity. Full-color illustrations.
747: Creating the World’s First Jumbo Jet and Other Adventures from a Life in Aviation
The aeronautical engineer who spearheaded the design and construction of the 747 offers an insider’s perspective of the development of the world’s largest and fastest jet aircraft during the 1960s golden age of American aviation and technology.
