VIDEO LESSONS
LESSON 1: LAYERS OF THE EARTH
LESSON 2: CONTINENTAL DRIFT THEORY
LESSON 3: PLATE TECTONIC
LESSON 4: EARTHQUAKES
LESSON 5: VOLCANOES
LESSON 6: PRECAUTIONARY MEASURES BEFORE, DURING AND AFTER THE EARTHQUAKES
LESSON 7: SEASONS IN THE PHILIPPINES
LESSON 8: EARTH'S ROTATION AND REVOLUTION
LESSON 9: PLANETS OF THE SOLAR SYSTEM