The document discusses plate tectonics and describes how the Earth's lithosphere is broken into tectonic plates that move over time. It explains that there are two main types of plates - oceanic plates composed mostly of basalt beneath the oceans, and continental plates composed mostly of granite located on land. There are about 16 major tectonic plates that are in constant slow motion, generating geological events like mountain building and volcanism at their boundaries. Alfred Wegener originally proposed the theory of continental drift that recognized plates moved over time.

1. Plate tectonics
"Plate Tectonics." Wikipedia. Wikimedia Foundation, n.d. Web. 04 Mar. 2015.
<http://en.wikipedia.org/wiki/Plate_tectonics>.

2. Plate tectonics is a scientific theory that describes how is
the plate moves. (Wikipedia. Wikimedia Foundation, n.d. Web. 05 Mar. 2015.
<http://www.wikipedia.org/wiki/Plate_tectonics>.)
As the Mountain or trench are generated because of plate
movement. ("Earth's Continental Plates - ZoomSchool.com." Earth's Continental Plates -
ZoomSchool.com. N.p., n.d. Web. 04 Mar. 2015.
<http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Continents.shtml>.)
Wegener is who thought of the theory of plate tectonics.
Theory of Plate Tectonics

3. tectonics
plate
what is something make of
a piece land of earth
Vocabulary
definition translate
构造
板块
"What Is Plate Tectonics, and How Does It Work?" What Is Plate Tectonics, and How Does It Work? N.p., n.d. Web. 05
Mar. 2015. <http://earth.rice.edu/mtpe/geo/geosphere/topics/2plate_tectonics.html>.

4. 04/16/15
Plate tectonics is Tectonics Plate is Lithosphere split into many
pieces. It have 2main types of plates, they are Oceanic plate and
Continental plate, they are different plate, Oceanic plate is
ingredient mostly of basalt and it's all land under the water.
Continental plate is ingredient mostly of granite and it's less
dense than oceanic plate. The Earth is generally considered to
have 16 major tectonic plates, there also have many small paece
of plate.
Summary

5. 04/16/15
Question
What is the plate call when it was come together?
How many oceanic plate in this world?
Which plate are we live?

6. 04/16/15
Answer
Plate was come together, we call it pangaea.
There is only one oceanic plate in this world, it call Pacific Plate.
We are live in the North American plate.

7. 04/16/15
Answer
Plate was come together, we call it pangaea.
There is only one oceanic plate in this world, it call Pacific Plate.
We are live in the North American plate.