+?Pangea?+

Cory S. 1/20/15-1/23/15 6th period

Q1.What evidence did Alfred Wegener use to support his theory of continitial drift?

He told everybody that he had found pre-excisting fossils on the Southern Coast of South America and Africa from the same dinasour.

Q2. Why do you think people didn't belive the continental drift theory when Wegener explained it?

Because people thought it was crazy that the Earth had once been one GIANT continent.

Q3. Who were the two scientist that brought forth supporting evidence to Wegener's theory? What was their evidince?

Arthur Holmes and Harry Hess. Their evidence was that the thermal convection in the Earth's mantle could cause the continines to move, but VERY slowly.

Q4. What are the three types of plate bounderies?

Convergent: 2 techtonic plates colliding into eachother.

Divergent: 2 techtonic plates separating from eachother.

Transform: 2 tectonic plates sliding against eachother.

Q5. What types of movements can occur between plates and what features can form from this type of movement?

Well, a Convergent boundary colide into eachother and forms mountains.

A Divergent boundary is we're 2 plates separate and form new land.

A Transform boundary is we're 2 plates slide against each other and most likely cause Earthqakes.

Q6. Give a specific example of a location on Earth where each type of plate boundary is present.

Divergent: the oceanic Nazca Plate.

Convergent: the Indian and Euraisian plates.

Transform: the Pacific Plate and the North American plate.

Q7. What do plate tectonics and trenches have in common?

They both have places where they curve down and go under eachother.

Q8. How old are the rocks off the East Coast of North America in relation to the rocks right along the Mid-Atlantic ridge?

they both most likely came from the same place then sink in the ocean and traviled through-out the ocean and some stayed there, others went through the ocean, but the age of the ones that are on the East Coast are probably the same age as the ones that are along the Mid Ocean Ridge.

Q9. Why do you think this is the case?

Because when Pangea started happening, the rocks started form at about the same time because the ocean when in between North America and Europe, so that means they started forming about the same time the others did.

Q10. What is a convection current?

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Q11. What are the seven major plate boundaries?

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Q12. What are two bad events that can happen as a direct result of plate tectonics?

1. An Earthquake could happen. {Caused from transform boundaries}

2. The Earth's crust could start forming on top of eachother which forms mountains. {Caused from Convergent boundaries}

Q13. How did plate tectonics cause these events?

Which ever plate tectonic caused damage, they all do something different. They move different ways so they cause they Earth to move different ways so who knows what the world will look like in 200 million years!

Q14. What are three good things plate tectonics do for humans?

1. The land sort of like grows, so that means we can make something out of that land and we can get resources for where the ocean used to be.

2. We are losing parts of our ocean.

3. Sometimes it keeps scientists busy which in that case, we learn more about how our Earth woks and we learn more about it.

Q15. How do plate tectonics cause these good events?

Its the way that they move, they are all different. They all cause good things and bad things....