Presents an introduction to water power, in simple text with illustrations, including information on water power in history, hydroelectric dams, tidal power, steam power, and related topics.
A short study of the various types of deserts in the world, where they are located, the plants and animals that inhabit them, their climates, and other related topics.
Presents an introduction to nature's food chain, and looks at the role of decomposers in the cycle, explaining what they are, examining different types of decomposers, and describing their habitats.