Plate Tectonic Theory

• The Plate tectonic Theory was created by having the idea of continental drift. continental drift is where theres plates moving to form things. three are three different ways how plates in, they are Convergent Boundary, Divergent Boundary and Transform Boundary.

Convergent Boundary is when the plates collide to form mountains or landforms. when two plates move the hotter one will want to go up to the top because the particles are bouncing very fast so it can cool down. also when theres crack in the plates magma come to fill it in and this is called subduction.


Divergent Boundary is when the plates move apart from each other.


Transform Boundary is when the plates grind past each other to create earthquakes into the earth. Mostly in the Transform plate Boundary there will be many earthquakes.

• The earth has four layers, they are: crust, mantle, outer core, inner core.

Crust is also known as lithosphere. Crust is the thiniest layer and crust is made out of rocks and plates.

Mantle is made out of magma and mantle is the thickiest layer on the earth. Mostly Convection currents happens in the mantle.

Outer Core is liquid metal and the outer core causes magnetic field.

Inner Core is Solid metal and the inner core is dense.

• Some evidence to the plate tectonic theory is:

-Puzzle Look
-Fossils
-Mountain/Landform Location
-Mid Alantic Ridge
-Ocean Levels
-Subduction
-Convection Currents
-Climate
-Pangaea(A Supercontinent)
-Pressure

Conferences Update[:

I learned many things this quarter such as the differences between laws and theories and how science works. I also learned what is a Dichotomous key, a Dichotomous key is a series of paired statements (yes or no questions) that helps identify species or something. I think i should work a little more harder in class. One thing i like about this class is that we get to work with groups or partners. I like how we work on the computer for things. Here is a video when we worked on the "Clay Boats."

We had a piece of clay and we and we had to figure out how to make a boat with that clay and put it in water to see if the clay boat would float or not with marbles on top of the boats.



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Earthquakes.

An earthquake is like when two blocks of the earth move past each other and the surface slips and this is called a "fault". Then sometimes the earth has foreshocks. while the earth is shaking when there is a earthquake the edges of the plates are stuck together, the blocks are still moving and the energy that causes the blocks to move pass each other is being stored up. Earthquakes are natrual disasters that can kill millions of poeple and also distroy cities and countries. An earthquake occurs when plate grinds and hit each other.

While an earthquake errupts the ground shakes and cracks in the earth being to form. Scientist or People use seismographs to record earthquakes. When they record a earthquake the seismograph shakes on the ground along with the Earthquake but the hanging weight does not shake with it. Scientists cannot predit when a earthquake is gonna happen soon because they have tried many different ways to predit when a earthquake is gonna happen but it never been successful. They say earthquakes are caused by "Plate Tectonics".