Science Philippines Volume IV is the fifth and last in a series of books on popular science articles written by Filipino scientists, science educators, and administrators about their work and related studies done by others in the Philippines and the rest of the world. The first four books are titled Selected Essays on Science and Technology for Securing a Better Philippines and Science Philippines Volumes I, II, and III. They contain articles that were published in the newspaper column called “Star Science” which appeared every Thursday in the business section of The Philippine Star starting in 2003. Each volume covers a “Star Science” publication period of several years, and the articles are organized by themes or topics and not by the chronology of publication.