Plate tectonics is a theory dealing with the dynamics of the Earth's outer shell, the lithosphere.
The lithospheric plates are composed of the rocky crust and outermost rocky layer of the mantle which are fused together.
Plate movements occur because the layer of Earth directly below the lithosphere, the asthenosphere, is hot enough, and under enough lithostatic pressure to prevent its melting, that it can deform without fracture.
The theory that describes this movement is called plate tectonics.
Plate tectonics is the outcome of thinking that began with an idea posed by German meteorologist Alfred Wegener in 1915.
According to the theory, the lithosphere is broken into seven large and many small moving plates. These plates, each about 50 miles thick, move relative to one another an average of a few inches a year.
I think for example of this type of movement, called subduction, occurs at the boundary between the oceanic Nazca Plate and the continental South American Plate. Where continental plates collide, they form major mountain systems such as the Himalayas.
I was enjoy mini - posers. because it is easy for me. and know more information about this activities required.
I think most challenging is music videos. because can't find the feeling and beat.
I learn how to make the brain pop video.
know more imformation about the types.
I would change the activity required for differen chose.
IHSL Jiafeng Sun
Anything I will believe in myself.
Wednesday, March 20, 2013
Sunday, October 28, 2012
Crystals&mierals blog post
Rystals and Minerals
Mineral properties
Metallic luster: the mineral look like metal
color: how does a mineral look
Non-metallic luster:the mineral doesn't look like metal
cleavage: a mineral that breaks evenly in the surface.
fracture: a mineral that breaks unevenly,(wave)
Hardness:the hardest mineral and the softest mineral
Mineral Identification
Halite
Luster:Nonmetallic
Streak:Colorless
Hardness: Soft
Cleavage
Talc
Nonmetallic
white
Soft
Cleavage
Wednesday, October 17, 2012
About Me
1.Science is difficulties and special of the subject.
2.I like billiard ball.
3.Ghost Stories scares me.
4.Stewed chicken is my favorite food.
5.I will be a Designer when i grow up
6.I have one sibling.
7.My favorite color is red with wine.
8.My favorite thing to do is design something like painting clothes.And listen to music and dance.
9.watch out for thief.
10.I wish quickly complete one's study.
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