Convection/Drifting Continents
Theory of Plate Tectonics
Earth's Interior/Sea-floor spreading
Volcanoes
Vocabulary
100
When you touch a hot object, the energy moves from the object to your hand. What is that movement of energy called?
What is heat transfer.
100
What explains the formation, movement, and subduction of Earth's plates?
What is Plate tectonics.
100
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as?
What is Subduction.
100
Island arc
What are volcanoes along converging oceanic plate boundaries.
100
Rock with a fine, dark texture that makes up the oceanic crust.
What is Basalt
200
What is one piece of evidence used by Alfred Wegener to support his continental drift hypothesis?
- Evidence from landforms - Evidence from fossils - Evidence from climate
200
When 2 plates of oceanic crust collide, one plate is subducted beneath the other. This can form a trench. What type of boundary is this?
What is convergent.
200
Part of the mantle is beneath the lithosphere and is somewhat soft.
What is the asthenosphere.
200
Tall, cone-shaped mountains in which layers of lave alternate with layers of ash.
What is Composite volcanoes
200
The outermost layer of Earth
What is The crust.
300
Within the Earth, heat transfer occurs by?
What is convection currents.
300
A rift valley forms when two pieces of continental crust pull apart. What type of boundary is this?
What is Divergent.
300
A dense ball of solid metal.
What is the inner core.
300
When many layers of thin, runny lava build up a high, level area.
What is Lava plateau
300
A major volcanic belt that circles the Pacifici Ocean.
What is The Ring of Fire
400
How does heat transfer through empty space?
What is radiation.
400
To plates can also slide past each other. This movement can sometimes cause earthquakes. What type of boundary is this?
What is Transform boundary.
400
How did scientists discover that rocks farther away from the mid-ocean ridge were older than those near it?
By determining the age of rock samples obtained by drilling on the sea floor.
400
Hot spot.
What is the Hawaiian Islands
400
Any trace of an ancient organism that has been preserve in rock.
What is Fossil
500
What was the name given to the 'supercontinent'?
What is Pangaea
500
Sea-floor spreading occurs as a result of what type of boundary?
What is Divergent.
500
How are Geologists able to obtain indirect evidence about Earth's interior?
They can do this by recording and studying seismic waves.
500
Where do most volcanoes form?
On the boundaries of Earth's plates.
500
A measure of how much mass there is in a volume of a substance.
Density
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