Earth's Structure
TRUE OR FALSE:
People build residential and commercial houses on the crust
True
What does a Ritcher scale measure?
Strength of an earthquake
How are volcanoes categorized?
By formation
By level of activity
By eruption
How are rocks categorized?
According to how they are formed
What makes up the crust?
Rocks, sediments, sedimentray rocks
It is located on the ground right above the focus
Epicenter
What kind of eruption makes lava fountain and fire curtain?
Hawaiian eruption
What does sedimetary rocks need to go through in order to become a metamorphic rock?
Heat and pressure
It is the hottest layer of the earth
Inner core
It is where most of the earthquake happens
Circum-Pacific belt
What is a caldera?
It is a depression in the vent; when magma chamber is empty
Differentiate intrusive igneous rocks from extrusive igneous rocks
Intrusive cools inside
Extrusive cools outside
It separates the crust from the mantle
Moho
It is the strength of an earthquake
Magnitude
Name the different kinds of tephra
Volcanic ashes, lapilli, volcanic bombs, volcanic blocks
What are the types of sedimentary rocks?
Mechanical, organic and chemical
Differentiate the nickel and iron in the inner and outer core
Inner solid
Outer liquid
Does earthquakes happen when plates move?
Yes
Magma hot liquid in the magma chamber
Lava molten rock that flows out of the volcano
How much of the earth is made up of sedimentary rocks?
About 70%