The Question and answer book

Answers questions about the seasonal changes produced by variations in the angle at which the sun's rays strike the earth.

Answers such questions as "Where does water come from?" and "Why is the ocean salty?". Includes simple experiments.

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

Questions and answers provide a wide range of basic information about animals, including such topics as classification, migration, hibernation, and habitats.

Questions and answers provide basic information about the physiology, repoductive cycle, and utilization of trees.

Answers questions about the stages in the life of a pond and about the plants and animals that may be found in and around ponds.

Answers such questions as "What is air made of?" and "How do plants use carbon dioxide?". Includes simple experiments.

Questions and answers provide basic information about magnets and magnetism. Includes several experiments.

Questions and answers provide basic information about sound, including its formation, pitch, variety, mode of travel, echo, and how ears receive sound waves.

Answers such questions as "What is a star?", "Why do stars twinkle?", and "How long does a star live?".