Wednesday, January 22, 2014

HELLO regents Earth Science class! It's VICI! Here are some answers to the lab I found!
I am not responsible if for some reason these answers are wrong... but they probably aren't. Enjoy.

1. What is happening at Slit B? What feature occurs at the corresponding location on the seafloor? 
1a. The strips of paper (molten rocks) are coming up and separating.
1b. Molten rock is coming up and creating new oceanic crust.
2. What is happening at Slit A and C? What features occur at corresponding locations on the seafloor?
2a. The strips of paper (rocks) are going down or disappearing.
2b. Old.Old seafloor is being destroyed and going back into the mantle. (A volcano is being formed)
3.  If you were to sample and date the rocks along the colored strip starting at Slit B and moving toward Slit A, what change if any would you see in the age of the rocks?
3.The rocks near Slit A are older & the rocks near Slit B are younger.   As the rocks move from Slit B to Slit A they become older.
4.  If you were to sample and date the rocks along the colored strip starting at Slit B and moving toward Slit C, what change if any would you see in the age of the rocks?
4. The rocks near Slit C are older & the rocks near Slit B are younger.  As the rocks move from Slit B to Slit C they become older. 
5. In this model, what do the strips represent? What do the colors represent?
5a. The strips of paper represent the rocks in the ocean crust. 
5b. The pattern of the rocks 
6.  Why is it important that your model have an identical pattern of strips on both sides of the center slit? 
6. The model has identical strips because, as the magma rises at the mid ocean ridge ½ goes to the right and ½ goes to the left of the mid ocean ridge.
7. What causes the plates to be pulled apart?
7. Convection currents (Convection)


4 comments: