Books in The Question and Answer Books series

Looks at the plants and animals that lived millions of years ago, explains how they formed fossils, and discusses what fossils can tell us about the past

Provides answers to such questions about the weather as "What makes the weather?", "Does air have weight?", "How big are hailstones?", and "What is El Niäno?"

Answers questions about outer space, the experiences of astronauts in space, and the workings of spacecraft and provides an annotated list of famous rockets and satellites

Provides answers to such questions about various species of whales and dolphins as "Do all whales have teeth?" and "Why do dolphins whistle?"

Questions and answers provide basic information about rocks and minerals, including their formation, properties, and identification.

Details the Viking mission to Mars and the journeys of other spacecraft that explored Mercury and Jupiter and considers questions about space colonies, UFO's, and other topics

Discusses in question and answer format the various kinds of vehicles used in modern warfare, including motorcycles, trucks, tanks, jeeps, airplanes, and ships.

Answers questions about the development of mountains and volcanoes and about their influence on the world's ecosystem and on human life.

Questions and answers provide basic information about the central body of the solar system, including its distance from the earth, solar storms, and sunspots.

Offers an introduction to the fundamentals of sound and discusses such topics as vibration, pitch, and echoes

Covering diverse facets of railroading, this survey explains how railroad track is laid, where the longest tunnel is, what the Orient Express was like, and what trains will be like in the future

Examines different types of trees and the ways in which they benefit and affect the earth