How It's Made
Boundaries
Things That Move
Other Stuff
What's That?
100
the innermost layer of the Earth
What is the core?
100
Plates collide along this boundary.
What is a convergent boundary?
100
the theory of plate movements
What is plate tectonics?
100
the thinnest layer of the Earth
What is the crust?
100
type of boundary where the Himalayas are located
What is a convergent boundary?
200
the outermost layer of the Earth
What is the crust?
200
Plates move away from each other along this boundary.
What is a divergent boundary?
200
how often the Earth's plates move
What is all the time?
200
the reason the Earth's core is solid, even though it's over 10,000 degrees Fahrenheit
What is immense pressure?
200
type of boundary where the mid-ocean ridge is located
What is a divergent boundary?
300
the layer directly above the outer core
What is the mantle?
300
Plates grind past each other at this type of boundary.
What is a transform fault boundary?
300
the process that forms a new sea floor along a rift
What is sea floor spreading?
300
the way today's continents were positioned about 200 million years ago, before they were Pangaea
What is they were grouped differently from the way they are today?
300
type of boundary where volcanoes are located
What is any boundary?
400
the layer of the Earth that includes the upper crust and the upper mantle
What is the lithosphere?
400
This forms where two plates move apart.
What is a rift?
400
the reason the Pacific Plate is called the Pacific Plate
What is it carries the Pacific Ocean floor?
400
meteorites, blowing wind, moving water, glaciers, earthquakes, volcanoes
What are things that change the surface of the Earth?
400
the place on a convergent boundary where one plate sinks under another plate
What is a subduction zone?
500
the zone of partially melted rock in the upper mantle
What is the asthenosphere?
500
the chain of mountains through the ocean
What is the mid-ocean ridge?
500
the reason the plates of the lithosphere float on the asthenosphere
What is the asthenosphere's plasticity?
500
why coal deposits formed by tropical plants are found in Pennsylvania
What is the continents moved and Pennsylvania used to be in a tropical zone?
500
what the mantle is composed of and what the core is made of
What are rock (mantle) and metal (core)?
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