A New true book

An introduction to the activities of our helpful police.

Discusses the history of money as a form of exchange in the world and in the United States, and suggests things to do with money not being spent right away.

A simple introduction to various types of museums describing their purpose, collections, and methods of display.

The geography, history, and cultural aspects of the world's second largest country.

Discusses causes of tornadoes, what happens during one, and the predicting of tornadoes.

Introduces the parts of a tree and their functions, as well as the kinds of trees and their place in the environment.

Describes the natural environment and traditional way of life of the Eskimos, contrasting their old customs with the new lifestyle brought by modern civilization.

An introduction the physical characteristics, habits, and natural environment of the beaver.

A brief discussion of what we have learned about sleep and dreams from research.

Describes what radiation is, its sources and uses, and the dangers of radiation exposure from nuclear bombs and power plant leaks.