No Kai the Earth wasn't always like this!Let's explore the earth and we can see how plate tectonics can shape our earth.
Wow the earth is really cool from up here. Was it always like this?
And speaking of mid ocean ridges there is also convection which is when less dense hot material/rock rises and more dense cool material/rock sinks.
A mid ocean ridge is where hot magma (molten rock that rises from mantle) from the mantle comes to the surface under the ocean creating mountains and undersea volcanos. It is created when the plates spread apart.
A deep ocean trench is a narrow, steep depression in the ocean bottom in which occur deep in the ocean.They form when a tectonic plate dives under another.
I know that the magma may create sea floor spreading which is when the magma rises and seperates the sea floor.
Wow, I know these are the landforms created by plate tectonics what are they and how are they created
A volcano is an opening in the earth allowing magma and debris to escape.When tectonic plates spread apart magma comes up from the space in between.
A rift valley is a valley with steep sides formed when plates move away
I actually know what a mountain is. It is large landform that rises above the surrounding land in a limited area created when two plates smach into one another.
The first boundary, oceanic-oceanic is when two oceanic plates merge together (convergent)
Next there is oceanic-continental when an oceanic and continental plate merge with each other(convergent).Which may create Subduction which is when sea floor plates slide under the continental plates.
Then continental-continental when two continental pieces merge together (convergent)
Then we have the divergent plates which is meaning the plates move away so for oceanic the two oceanic plates move away and for continental the two plates move away.
I know that there are two main crust types, continental and oceanic which are both less dense than the mantle.How do the plate boundaries work?
I also know earthquakes are formed from transform boundaries which are two plates sliding away from each other.
Well Kai, as you know mid-ocean ridges do have magma rising from them as the magma rises and moves away it slowly adds sediment later becoming rock
So Anton, where does all the new crust come from?
It means some areas are more likely to have earthquakes compared to others because of where the tectonic plates are situated also this is the result of transform boundaries creating sudden energy while sliding in opposite directions.
I know some areas are more prone to earthquakes than others what does this mean?