1. PLATE TECTONICS Chapter 2 Trevor Evans, Alyssa Morgan, Jordan Scott,

2. Flow of energy in the earth Thermal convection- a movement pattern in a fluid caused from heating from below and cooling from above. -this means that it transfers heat energy from the bottom of the convection cell to the top - if you think about it… its like a conveyor belt.

4. Earth’s Interior Crust- The crust is the outermost layer of the earth. It is about 25 miles thick beneath continents and 6.5 miles thick beneath oceans. The crust is light and brittle, and most earthquakes occur within the crust. Lithosphere- The crust and upper mantle are called the lithosphere and they extend to about 80 km deep. The lithosphere is broken up into giant plate that fit around the globe, these plates move just a little bit each year. Asthenosphere- This is ductile and can be pushed and deformed in response to the warmth of the earth. Mantle- Is the layer above the core, about 6 miles below oceanic crust and 19 miles below continental crust.

6. Theory Of Development Wegener- In 1915, Alfred Wegener first believed the theory of continental drift, which states that parts of the Earth's crust slowly drift atop a liquid core. The fossil record says and gives credence to the theories of continental drift and plate tectonics. He used scientific method to prove a theory about plate tectonics moving. Suess- 1831–1914, Austrian geologist. Eduard Suess said that the continent once covered most or all Earth's surface before breaking apart and forming different continents. Pangea- Pangea was fragmented into several pieces, each being part of a mobile plate of the lithosphere. Pangea was a continent that was together but now in pieces 225 million years ago. Used to be spelled and still sometimes is spelled "Pangaea."

7. Conservation Of Matter How and where minerals are destroyed and created- As rocks become more interior of the earth, the less dense rocks rise slowly over time, unless they’re too ridged to allow flow. As magma is forced up, material is created (like basalt rock) is from the lava that cools at a certain temp., and time. How plates are growing or shrinking- We know that the plate tectonics are growing and shrinking, for example, Pangaea. A long time ago, the continents were not where they are now, they were together.

8. Evidence of movement Paleomagnetism- Paleomagnitism is one of the strongest pieces of evidence for plate tectonics, people have found some rocks in Alaska with magnetic minerals. The minerals were arranged in a certain way that they must have been laid down close to the equator. And u can see that they are far from the equator, nearly 70 degrees from it. fossils- Fossils from the same species have been found in all different parts of the world. These different parts of the world are seperated by landforms that would be nearly impossible for that species to get to.

9. Plate Boundaries Divergent boundaries- When two plates move away from each other, divergent boundaries create valleys. Convergent Boundaries- This is when two plates collide with each other. There are three types of Convergent boundaries ocean/ocean, continental/continental, and ocean/continental. Transform Boundary- This is when two plates slide parallel to each other, and this creates earth quakes.

10. Divergent boundary Convergent boundary Transform Boundary