The series features his fictional science of Psychohistory in which the future course of the history of large populations can be predicted.
At the same time, he greatly increased his non-fiction production, writing mostly on science topics; the launch of Sputnik in 1957 engendered public concern over a "science gap", which Asimov's publishers were eager to fill with as much material as he could write.
These columns, periodically collected into books by his principal publisher, Doubleday, helped make Asimov's reputation as a "Great Explainer" of science and were referred to by him as his only pop-science writing in which he never had to assume complete ignorance of the subjects at hand on the part of his readers.
This is a given in the life of a library media center each year: teachers will assign science fair projects and students will come looking for ideas and assistance.
Probe : a handbook for teachers of elementary science; [compiled from games, activities, and experiments which were submitted by 55 cooperating teachers], 1962.
Science experiments for elementary schools : a manual for conducting classroom demonstrations, 1971.