Into the Earth
Which layer of the Earth is responsible for the Earth's magnetic field?
Outer core
These are the molten rocks found underground.
Magma
The Earth's crust and upper mantle are broken into many plates called _____.
Tectonic plates
A _______ plate boundary occurs when two tectonic plates move away from each other.
Divergent
A _______ plate boundary is an area on Earth where two or more lithospheric plates collide.
Convergent
It is the most seismically and volcanically active zone in the world.
Pacific Ring of Fire / Ring of Fire
What are the 4 main layers of the Earth?
Crust, Mantle, Outer core, and Inner core
A _______ plate boundary occurs when two tectonic plates slide past each other.
Transform
It is the branch of science that focuses on the study of the Earth.
It is an opening in the Earth’s crust that allows molten rock, gases, and debris to escape to the surface.
Volcano
True or False: The Richter scale is a scale used to measure the magnitude of earthquakes.
True
It is the point on the Earth's surface directly above the focus or hypocenter of an earthquake.
Epicenter
It is a weak to violent shaking of the ground produced by the sudden movement of plate boundaries.
Earthquake
It is a scale used to determine the physical damage done by an earthquake.
Mercalli scale
It is an instrument used to record the motion of the ground during an earthquake.
Seismograph
Give one positive effect of a volcanic eruption.
Volcanic materials ultimately break down and weather to form some of the most fertile soils on Earth, cultivation of which has produced abundant food and fostered civilizations.
What are the most abundant metals in the Earth’s core?
Iron and Nickel
What happens to temperature as you go deeper into the Earth?
It increases
It is the Philippine national institution dedicated to providing information on the activities of volcanoes, earthquakes, and tsunamis.
PHILVOCS
Earthquakes occur as a result of _______________.
Movements of plate boundaries