L. Cortes, et al
Published by ISMED
This is a secondary level textbook intended to deepen awareness and develop scientific knowledge and understanding of earth processes such as weather, ocean movements, erosion, and volcanic eruption. Its Philippine orientation, i.e., conditions and processes observable in the country and data about natural phenomena, sites and resources, not only concretizes theories and principles but also enables our students to identify with their own country. To ensure the development of concepts, activities containing specifications of materials, detailed procedures and well thought-out questions are woven into the text at points where they can be of most help to students.