Name:__________________________________ Class:_______________
CH 9, 10, and 11 STUDY GUIDE:
1.
What is subduction?
2.
Plates come together at _________ boundaries.
3.
What is the theory of seafloor spreading?
4.
Describe the importance of convection currents in the mantle.
5.
What is a divergent boundary? Give an example.
6.
The driving forces of tectonic plates are related to convection currents in Earth’s
_______.
7.
Crust is neither destroyed nor formed along _________ boundaries.
8.
New ocean floor is created at ________ and old crust is destroyed at ________.
9.
Describe the three types of plate boundaries and give two features of each.
10.
Where do most divergent boundaries occur?
11.
Describe how density plays a role in convection current movement.
12.
Who developed the theory of plate tectonics?
13.
What did scientists use to map the Mid Ocean Ridge?
14.
Draw and label the three types of volcanoes.
15.
Draw and label the layers of the Earth.
16.
Define aftershock (earthquake).
17.
What is the difference between the Richter Scale and Mercalli Scale?
18.
Define focus and epicenter.
19.
How do scientists date or estimate the age of rocks?
20.
How old is the Earth?
21.
Define island arc.
22.
List at least three types of evidence to support Continental Drift.
23.
Be able to arrange images of Erath’s plates in order from Pangaea to present.
24.
The Himalayan Mountains formed as a result of what type of boundary?
25.
What type of boundary is the map of Iceland showing?
26.
How are the Hawaiian Islands formed? Describe in detail.
27.
Describe the ring of fire.

Match each letter that appears on the diagram with the appropriate feature below. Then answer the questions.
20.
Letter Y on the left illustrates a ________ boundary.
21.
Letter X illustrates a ________ ________.
22.
Letter Y on the right illustrates a ___________ zone.
23.
Letter B illustrates __________.
24.
Letter A illustrates ___________.
Complete the table below.
Type of
Boundary
Plates Involved Direction of
Movement
1 Divergent
2
3 Convergent
4
5 Convergent
Moving apart
Toward one another
Toward one another
6 Oceanic-oceanic and
Continental-continental
Slide past one another
Resulting
Feature or
Phenomena
Ocean ridges
Rift valley
Deep-sea trench and
Volcanic mountain range on land & trench
Uplifted mountain range