Key:
1.
2.
3.
4.
5.
Summarize
Paraphrase
Answer
Revise
Understand/Research
Week
Topic
Week 1
Earthquakes
Week 1
Volcanic eruptions
Week 2
Seasons in the Philippines
Week 5
Motions of the Earth
Week 1 - Notes about Earthquakes
● Answer:
○ What is an earthquake?
■ An earthquake is a natural phenomenon. It is the
shaking, trembling, or rolling of the surface due to
the movement of plates on the Earth’s crust.
● Research:
○ What causes earthquakes?
■ There are 2 causes of earthquakes.
● Volcanic: Caused by the movement of molten
materials or by gas pressure inside a volcano.
● Tectonic: Caused by the movements in the
earth’s crust.
● Paraphrase:
○ An earthquake is a natural phenomenon. It is the
shaking, trembling, or rolling of the surface due to the
movement of plates on the Earth’s crust.
■ Earthquakes happen naturally due, to the
movement of tectonic plates under the earth’s
crust.
● Answer:
○ What are essential terms to remember?
■ Seismic activities — Types, frequency, and size of
earthquakes that happen over a period in a
specific place.
■ Foreshocks —- Trembles that occur before the
main earthquake.
■ Aftershock —- Trembles that occur a few days or
weeks after the main earthquake.
Anatomy of an earthquake
West Valley fault system
● An active fault system runs from Sierra Madre to Santa Rosa,
Laguna.
● It is feared that if this fault system moves, a major
catastrophe will occur because the area has a high
population density.
● Answer:
○ How do scientists monitor earthquakes?
■ Seismic waves are generated by earthquakes