Plate Tectonic Boundaries
Forms Mountains, Mountain ranges
When plate boundaries move towards each other, at convergent boundaries?
Convection currents in the mantle
What causes a heat transfer in the Earth?
Volcanoes and earthquakes often occur in similar locations is evidence of continental drift. (True/ False)
True
Molten material that comes out of volcanoes
What is Lava?
Two colliding oceanic plates great a string of islands
What is an Island Arc?
Rocky mountains, Alps, Himalayans, Andes are all formed due to this.
What are convergent boundaries?
Mantle is responsible for plate movement on Earth's crust
Which layer of the Earth does convection currents (heat transfer) occur to move the plates?
Only Continents Move Due to Convection Currents. - True or False?
False
Volcanoes that erupt with shooting lava, ash plumes, and pyroclastic flows.
What are explosive volcanoes?
Famous super volcano found in the continental US.
What is Yellowstone?
Convergent, Divergent, Transform
What are the three ways Tectonic boundaries can move?
1. Cannot directly observe the layers of the Earth
2. Earth's layers are too big to observe
3. Scientists cannot drill past the crust
What are some reasons that scientist use models to study the layers of the Earth?
Movements of plates along the boundaries release a lot of energy which is measured on the Richter Scale.
What are earthquakes?
Thin flowing lava with low viscosity.
What are quiet eruptions?
San Andreas fault caused by this boundary
What is a Transform Faults
Rift Valleys
What forms due to divergent plates on land?
The Earth's core is ____(hotter, colder) and has ____(more, less) iron than the Earth's crust.
What is hotter, more iron?
Where does the earthquakes and volcanic activity occur?
a. oceanic crust
b. Mountain
c. boundaries of the plate tectonics
boundaries of the plate tectonics
Volcanoes along with earthquakes are concentrated in this area.
What is Ring of Fire?
It releases ash into the atmosphere.
How does the eruption of volcanoes affect the Earth's atmosphere?
Oceanic crust has a greater density going underneath a continental crust.
Why does the oceanic crust sink beneath continental crust?
EARTH'S Core transfers heat to the Mantle.
Where does the main heat source come from to cause the plate tectonics to move?
1.Fossils of the same plants and animals in different places
2. Shaped like a puzzle
3. Similar mountain range
4. Similar rock types
What are the 4 pieces of evidence that prove continental drift?
Volcanoes, Like Hawaii, are created due to this phenomena
What is a Hot Spot?
If subduction occurs, what will cause the oceanic crust to sink and collide with the continental crust?
oceanic crust has more density