Take your younger elementary students on an exploration of life science, earth science, and physical science with the Learning About Science Collection, Level 2. These eight books study what an ecosystem is, how food chains work, why animals hibernate, how plants grow, some of the ways we use plants, major body systems and key organs and tissues, the water cycle, types of clouds, the planets, constellations, forces, simple machines, the scientific method, famous scientists, and more. Students ca