Question

ssion and reflection questions:
(partially visible instruction about plotting volcano locations and numbering them to map the ring of fire)

1. once you have the ring of fire mapped, use the map of earthquake epicenter locations and copy it on to your map using a second colored pencil.
2. now that you have the locations of major volcanoes around the pacific rim as well as a record of thousands of earthquake occurrences, draw an outline of where you think the boundary for the pacific plate might lie
3. mapping the locations of volcanoes and earthquakes is one clue to the plate tectonic puzzle. what are three other sets of data that has helped develop this theory?

a.

b.

c.

1. match the word with the best definition.

____ 1. volcano \ta. the border between two tectonic plates
____ 2. tectonic plate \tb. two tectonic plates bumping into one another
____ 3. earthquake \tc. a fracture in the crust that produces magma, ash, etc.
____ 4. plate boundary \td. a fracture in the crust that produces seismic waves
____ 5. plate collision \te. large chunk of the earth’s crust. there are several.

1. who was alfred wegener and why is he important in the study of earth?

1. the ring of fire is significant in that it is the location of ____% of all volcanoes and home to ____% of all recorded earthquakes since 1966.

Explanation:

Answer:

A. Seafloor spreading data
B. Fossil distribution across continents
C. Rock formation and mountain range correlations

1. c. A fracture in the crust that produces magma, and volcanic activity
2. e. Large chunk of the earth's crust. There are several major ones.
3. d. A fracture in the crust that produces seismic waves
4. a. The border between two tectonic plates
5. b. Two tectonic plates bumping into one another

Alfred Wegener was a German geophysicist; he proposed the continental drift theory, laying the groundwork for plate tectonics.
75
90