- Scientific Laws, Principles, and Theories: A Reference Guide
- The Basics of Earth Science
- The History and Use of Our Earth's Chemical Elements: A Reference Guide, Second Edition
- Groundbreaking Scientific Experiments, Inventions, and Discoveries of the Middle Ages and the Renaissance (Groundbreaking Scientific Experiments, Inventions and Discoveries through the Ages)
- Scientific Development and Misconceptions Through the Ages: A Reference Guide