A divergent boundary is when the plates move apart.
100
Name a landform created in a subduction zone?
Volcanoes and trenches
100
What is a plate?
The term given to crust (land) that moves on the mantle.
100
What is granite? What crust type is it found in?
Igneous rock. Continental plate composition.
100
What main type of energy is found in convection?
Heat energy
200
What is a convergent boundary?
Where plates converge, compress or collide together.
200
What main landform occurs from sea-floor spreading?
An oceanic ridge. (Ex. Mid- Oceanic Ridge that is 40,000 miles long).
200
What is the lithosphere?
The crust and a little bit of the mantle just above the asthenosphere.
200
What is an oceanic plate? What is it made of?
Crust from under the ocean and it is composed of basalt.
200
List what energy types are found in volcanoes?
Light, heat ,sound, mechanical, chemical
300
What is a transform boundary?
Where plates slide past one another in opposite directions.
300
What are trenches and volcanoes?
What are the landforms that are created at the Nazca and South American Plate boundary?
300
What is geochronology evidence?
When the dates or age of rocks are used to understand an area of study.
300
What is mountain building? (What plate activity forms mountains?)
Two continental plates move toward each other(converge) and collide to build up rock material and crustal uplift of mountains occurs.
300
What type of wave energy is found in earthquakes?
Seismic waves , s and p waves ( sound, mechanical too)
400
What type of plate movement causes sea-floor spreading?
Seafloor spreading occurs when oceanic plates diverge.
400
What is formed above a subduction zone?
What are volcanoes along an "island arc" chain, trenches.
400
What is a theory? Give an example.
An idea that is based on fact and is generally accepted by the scientific community. Ex. Plate Tectonics!
400
What occurs when an oceanic plate meets another plate?
Subduction of the denser oceanic plate occurs and this will create a trench along subduction zone, volcanoes too above.
400
List what energy and forces drive heat transfer in mantle convection cells and then move plates.
Movement of materials within the Earth results from heat E in the interior and action of gravity on regions of different density. Material (mantle) will rise and fall depending on how hot/cold it is. Gravity, density and temperature all play a role.
500
What is a hot spot and what landform/s are associated with them?
A hot spot is usually in the middle of a plate and underneath the plate is a very hot thermal plume of magma that stays in one location. As the plate moves over it the volcanoes form in a line, but the plume of magma stays where it is.
(Ex. Hawaii on the Pacific Plate)
500
What is a rift valley and volcanoes.
What landform/s do two divergent continental plates form?
500
What is convection and explain how it works to transfer heat.
Convection is a form of heat transfer in the Earth's mantle. Heat is transferred by density and temperature differences. These cause convection cells that are circular and move plates away. Sketch too can help.
500
How are oceanic and continental crust different? (Compare rock type, thickness, density)
The oceanic crust is more thin, but more dense & heavy,it is made of basalt and the continental plate is composed of granite.
500
Explain how plate movement can transfer energy to the surface.
Slow plate movements can cause changes to the surface by earthquakes and volcanoes, mountain building, landslides etc.