Krebs, Robert E.

Contains alphabetically arranged entries that provide information on key principles, laws, theories, hypotheses, and concepts in the history of the natural sciences, including physics, chemistry, biology, astronomy, geology, and mathematics.

An introductory overview of earth science that covers its history, key figures, and major concepts and provides sample experiments, a further resource list, and diagrams, tables, and charts.

An introduction to 103 chemical elements with a comprehensive summary of each elements properties and characteristics, including information on atomic number, common valence, isotopes, and common uses.

Describes significant experiments, inventions, and discoveries made from prehistory to the Middle Ages in twelve areas of science including agriculture, astronomy, biology, mathematics, medicine and health, timekeeping, tools and weaponry, transportation, and others.

Describes significant experiments, inventions, and discoveries made from 500 to 1600 A.D. in eight areas of science including astronomy, geography and exploration, botany and zoology, medicine and health, mathematics, physics and chemistry, inventions and innovations, and weapons and war.

Contains alphabetically arranged entries that provide information about the history of significant scientific laws, principles, theories, hypotheses, and concepts; and includes a glossary, bibliography, and index.

An introduction to 120 chemical elements with a comprehensive summary of each element's properties and characteristics, including information on atomic number, common valence, isotopes, and common uses.