Includes glossary.

"The Exploring Life Through Science (ELTS) series, driven by the enthusiastic responses and steadfast support from school administrations, science teachers and students, has motivated us to raise further the quality of science education by providing a textbook that is at par with the standards of international science learning materials. It focuses on general principles with the emphasis on interdisciplinary world-class science, innovative and practical technology environment-centered science instruction, health issues, and the inculcation of the Filipino pride. ELTS k-12 Edition was assiduously crafted in order to develop a culture of science among the Filipino students so that they will be honed as scientifically, technologically, environmentally literate and productive members of society. It is our inspiration that through this book, we will be instruments in the development of students who are critical problem solvers, lifetime learners, responsible stewards of the mother Earth, truth seekers ,impartial decision makers, responsive and ingenious citizen, and effective communicators".

English text.