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Transcript
Diagram 1
1. What kind of crust is plate A, B and C made of?
2. What type of plate boundary is shown at X?
3. What plate boundary is shown at Y?
Diagram 2
4. What is being shown at Z? Why is plate B going underneath plate C?
5. Would there be a ridge, a rift, or a trench at X? Explain. What about Y?
6. Why do you think there appears to be a mountain range at Y? What is going on here?
1. Based on this diagram, explain how the Red
Sea was formed.
2. Why are there so many volcanoes around the
Red Sea?
7. Where would new crust be forming?
8. Explain how this diagram can be said to show how the Earth’s crust can be “recycled".
9. Find a topographic map of Atlantic Ocean in an atlas. How does this relate to this diagram?
3. Hypothesize what will happen to the shape and
size of the Red Sea in time.
Diagram 3
1. What kinds of plates are involved here?
2. What kind of plate boundary is this?
3. Why is a mountain range growing at this plate boundary?
Diagram 4
1. It is possible for one plate to be made of partly oceanic crust and partly continental crust.
If this is true for the region shown here (that the parts of the plates that are in the oceanic are
oceanic crust and the parts that make up Iceland are continental) where would a ridge be
created and where would a rift be created? Why?
2. What kinds of natural disasters do you think Iceland is prone to?
3. Iceland is known as “The Land of Fire and Ice". Explain why this might be.
Diagram 5
1. What formation is shown in this diagram?
2. Label the faults.
3. What type of plate boundary is this? How do you know?
Diagram 1
1.What kind of crust is plate
A, B and C made of?
-A, B: oceanic
-C: continental
2.What type of plate
boundary is shown at X?
- divergent
3.What plate boundary is
shown at Y?
- convergent
4.What is being shown at Z? Why is plate B going underneath plate C?
- subduction
- oceanic crust is denser than continental
5.Would there be a ridge, a rift, or a trench at X? Explain. What about Y?
- X: ridge; the magma is able to escape through the crust and cools to form the ridge
- Y: trench
6.Why do you think there appears to be a mountain range at Y? What is going on
here?
- rock is being pushed - the force of this crumples the crust because the plates are
going against each other
7.Where would new crust be forming?
- X, ridge
8.Explain how this diagram can be said to show how the Earth’s crust can be
“recycled".
- at Y the rock is melting into magma and at X it’s being made back into crust
9.Find a topographic map of Atlantic Ocean in an atlas. How does this relate to this
diagram?
- at the Mid-Atlantic Ridge there is higher elevation
- here, magma is escaping and cooling
- this is evidence for a plate boundary
Diagram 2
10.Based on this diagram, explain how the Red Sea was
formed.
-Arabian plate and the African plate are diverging
-rift is formed and water filled it in
2.Why are there so many volcanoes around the Red Sea?
- volcanoes are prevalent at plate boundaries
3.Hypothesize what will happen to the shape and size of
the Red Sea in time.
- longer, wider
Diagram 3
1. What kinds of plates are involved here?
- two continental plates
2.What kind of plate boundary is this?
- convergent
3.Why is a mountain range growing at this plate boundary?
- moving together: the crust buckles
- no subduction because they are made of the same type of crust (continental)
Diagram 4
4.It is possible for one plate to be made of partly oceanic crust and partly
continental crust. If this is true for the region shown here (that the parts of the
plates that are in the oceanic are oceanic crust and the parts that make up Iceland
are continental) where would a ridge be created and where would a rift be created?
Why?
- ridge is created in the water (oceanic crust)
- rift is created on land
2. What kinds of natural disasters do you think Iceland is prone to?
- volcanoes, earthquakes
3.Iceland is known as “The Land of Fire and Ice". Explain why this might be.
- Ice: latitude, Fire: volcanoes, hot springs
Diagram 5
1.What formation is shown in this diagram? - rift
2.Label the faults.
3. What type of plate boundary is this? How do you know?
- divergent, because it’s a rift (two continental plates diverging)