"Flowering plants, cone-bearing plants, ferns, and mosses make up the four main plant groups. ... This ... book investigates the life cycles of each of the four main plant groups"--Back cover.
"Have you ever wondered what would happen if scientists could change or control atoms, the smallest building blocks of the universe? Examine the science of nanotechnology with simple language and striking visuals that reinforce understanding."--Provided by publisher.
"Discover how scientists are using extremely low temperatures to save lives. Explore the theories behind cryobiology in this high-interest book that uses simple language and ... photos to engage even the most reluctant readers"--Provided by publisher.