Name________________________________Block______________________Date___________
Plate Tectonic Study Guide
Instructions: Please answer all of the following questions in a complete sentence unless I have given space for a one word answer.
1)Ocean trenches are often found at ________________________ plate boundaries?(3.3)
2)The tectonic plates move at about the same rate as…………
3) Explain the evidence Alfred Wegner had for his theory of continental drift. (3.2 or PP)
4) Why was Alfred Wegner's theory of continental drift not at first widely accepted by the scientific community? (3.2 or PP)
5) At transform boundaries, tectonic plates ___________________________________. (3.4)
6) When the seafloor spreads what is created? (3.2 or 3.3)
7) Scientists believe that Earth's tectonic plates move because of
___________________ __________________________. (3.2)
8) Explain what occurs at convergent boundaries? (3.4)
9) What land features are found along divergent plate boundaries? (3.3)
10) The process by which tectonic plates move apart at mid-ocean ridges is called _______________________________________. (3.2)
11) Rift valleys often occur along what type of plate boundary? (3.3)
12) Convergent plate boundaries ______________________. (3.4)

13) The two types of tectonic plates are ____________________and
_____________________________. (3.4)
14) What happens at divergent boundaries? (3.3)
15) The Earth's crust and upper mantle are broken into pieces called __________
_____________________. (3.2)
16) What land features are created when tectonic plates collide? (3.4)
17) Along certain plate boundaries magma comes to the Earth's surface to form new rock. This happens because of ____________________________. (3.3)
18) What causes the movement of tectonic plates?(3.2)
19) The theory that the Earth's crust is broken into pieces that move around is called _____________________ _____________________. (3.2)
20) Convection currents in Earth's interior cause _________________ ________________.
(3.2)
21)New rock is brought to the Earth's surface from its interior at
_______________________ _________________. (3.3)
22) The tectonic plates are floating on material that is moving in the Earth's
____________________. (3.2)
Bonus Question: Draw and label the interior of the Earth.

1.
divergent
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
2.
your fingernails grow
3.
fossil evidence, the continents fit together, rock found in different locations the same.
4.
He could not explain how the continents move
5.
slide past each other
6.
volcanic rock or crust
7.
convection currents in Earth's mantle
8.
plates collide
9.
mid-ocean ridges, rift valley
10.
sea floor spreading divergent collide continental and oceanic crust new rock comes to the Earth's surface
tectonic plates
Island arcs, Mountains, coastal mountains
Convection currents
Convection currents
Plate tectonics
Continental Drift
Divergent plate boundaries
Mantle