Layers of the Earth
Plate Tectonics
Volcanoes and Earthquakes
Misc
100
What are the names for the 4 layers of the Earth?
Crust, upper mantle, lower mantle, and core
100
What is it called where one plate bumps into another plate?
convergent boundary
100
What happens along large cracks called faults at the edge of the Earth's plates?
earthquakes
100
What is a tsunami?
A tsunami is a huge ocean wave.
200
How hot is the Earth's core?
As hot as the sun--about 10,000 degrees
200
What is a divergent boundary?
It is where 2 plates move away from each other.
200
What is an epicenter?
An epicenter is the place where an earthquake begins.
200
How long has seafloor spreading been going on?
Seafloor spreading has been going on for millions of years.
300
Which layer is made up of iron and magnesium?
upper mantle
300
What is formed as a result of convergent boundaries?
mountains, hills, and valleys
300
Name 2 islands that were formed from a volcano.
Japan and the Hawaiian Islands
300
Where would I look for the newest rocks on Earth?
mid-ocean ridges or in the middle of the ocean way down to the bottom
400
Which layer of the Earth is the thickest (1,800 miles thick)?
lower mantle
400
What happens as a result of divergent boundaries?
seafloor spreading
400
Who invented the earliest tool for measuring earthquakes?
Chang Heng
400
What is the name of science that studies earthquakes?
seismology
500
What is the continental crust plus the upper mantle called?
the lithosphere
500
Name the plate that is heavier and slides underneath when the Earth's plates bump into each other?
the ocean plate
500
When and where was the first seismograph invented?
It was invented in China in about 132 AD
500
What compound is introduced into the environment through volcanoes, weathering and other events?
Boron
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