Features lessons and activities suitable for Primary (Grades 1-2, ages 6-8), Junior (Grades 3-4, ages 8-10), Intermediate (Grades 5-6, ages 10-12); many intermediate activities are also suitable for Grades 7-8. (See: "Grading Science Teaching to Age Levels" --p. xiv-xv.

An engaging introduction to a variety of natural phenomena that occur throughout the year. The seven stories for each season cover a range of topics from animal and plant life to geology and physics. Each chapter concludes with a list of activities to pursue and stories to read to excite further interest.

Tells the success story of insects, discussing how the nearly one million known species have managed to survive and thrive in the varying climates and conditions of the earth, focusing on the cecropia moth as a basis for comparison.

Describes the structure and purpose of leaves, the ways in which they change as part of the natural cycle of the seasons, and the process that creates their autumn colors.