Sunday, March 17, 2013

Plate Tectonic

Question: Do you agree with the theory of plate tectonics?

What is plate tectonics? Plate tectonics is all the lithosphere on the earth, and all the plates were together, after millions millions years ago, they separated into many different pieces. For example: Africa, North America, South America. I agree with it because there are many reason, convection currents is one of the main reason that cause all the plates separated!

What is convection currents, convection currents is a movement inside the earth, it happens in mantel, when the magma gets heat from the the outer core it will rise up because of the pressure, and when the magma reach all the way to the top, touch the cold surface, the magma go down again, and the process keeps repeat, form a circle and keeps going around, and it cause the plates above mantel keeps moving.

Another reason is because of the movement of plate boundary, there are three types of boundary movement. Convergent, divergent, and transform. they make the plates separated because they moved the plates from another. Convergent when two plates come together, this also create a trench, volcano, and mountain. another one is divergent, when two plates move a part, this type of movement create a ridge, rift, and volcano underwater. the last movement is called transform, which two plates slide by each other, this type of boundary movement create earthquake, this three types of boundary movement happened in millions millions years ago, untill now it still keep happen, that's why the plates were separated.

The last reason is the geography, it is like a puzzle, when we put all the plates back together they can form a piece of pretty big land, and the desert, the animal fossil is another evidence we can use to proof all plates were together, if there are one desert is somewhere between two plates million years ago, and when we put back together, we can see two small desert can form one big desert. Another reason is the animal fossil, if we found a big special blue tyrannosaurus rex fossil in Asia, we may also discover one in  North America.

Through all the research I did, I learned that all the plates were together and called Pangaea, and there were some reason why the Pangaea separated, because of the boundary movement, and convection currents. In my opinion, I should learn more about earth science, so we can know like what was earth look like million years ago, or what is outside of the earth, what is the origin of the earth.

Reflection
What did you enjoy most about this project and why?
I enjoy create a mini lab in Microsoft, because it's very helpful, it improve me to know how to use Microsoft even better, and it's funny to make a lab for people to do.

What was most challenging for you during this project and why?
The most challenging part for me was present my stuff to my group, because it was easy for me to make everything, but when the times come to present, i felt a little nervous, because its hard to let them know what I want them to do.

What new skills did you learn from doing this project.
In this project I learned how to sing a poem, and also improve me on using Microsoft better.

Is there anything that you could have done to improve any of your work? explain.
I could do better on the first part taking note on the video, because i was kind lazy during that part, and i talked to my classmate a lot.

What would you change about this project?
No, I would change nothing about this project, because this project is perfect, and I really learned lot of thing about earth science in this project.