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In this picture book biography about eighteenth-century mathematician Sophie Germain, young readers will find a female role model who loved math and changed the world with her discoveries.

Gregor Mendel explains to children the theory of heredity in simple-to-understand language and examples. Regarded as the world's first geneticist, Gregor Mendel discovered one of the fundamental aspects of genetic science: animals, plants, and people all inherit and pass down traits through the same process. Living the slow-paced, contemplative life of a friar, Gregor Mendel was able to conceive and put into practice his great experiment--observing yellow peas, green peas, smooth peas, and wrinkled peas to craft his theory--years before scientists had any notion of genes. Includes an...

Simple science text and dramatic illustrations give a close-up view of the fascinating world of the dung beetle. When an animal lightens its load, dung beetles race to the scene. They battle over, devour, hoard, and lay their eggs in the precious poop. Dung is food, drink, and fuel for new life--as crucial to these beetles as the beetles are to many habitats, including our own.