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Moving and Shaking – Station 1
Earth’s tectonic plates sometimes move toward each other. As these plates
collide over long periods of time, they crumble and form high mountain ranges.
The Himalayan Mountains were formed and are still reaching new heights today
due to colliding plates. This collision of plates can also produces strong
earthquakes. Complete the following tasks to understand more about the effects
caused by tectonic plates moving towards each other.
1) On the computer click on the Link for Station 1 Video. Watch the video.
2) On Doodle Buddy:
a. Locate and put a SMALL Blue dot at 35N and 70E
b. Locate and put a SMALL Blue dot at 30 N and 90 E
c. Now draw a blue line to connect the dots to show the location of
the Himalayan Mountains.
d. Draw arrows showing which direction the plates are moving.
3) Answer the following questions on Notes.
a. Which way are the plates moving?
b. What evidence is there that the mountains were once in the ocean?
c. What force of nature happens because of the plate movement?
Moving and Shaking – Station 2
Some tectonic plates move apart very slowly over time. This type of plate
movement usually occurs on the ocean floor. As the plates move away from each
other, hot, molten rock called magma moves up into the space between the plates.
Once molten material reaches Earth’s surface, it is called lava. As the lava
escapes, it cools and hardens to form new crust in the ocean basin. Over time,
the lava builds to form large underwater mountain ranges along the edge of the
plate boundary. Underwater mountains are formed as a result of the plates
moving apart. Examples include the Mid Atlantic Ridge in the Atlantic Ocean
and the Earth Pacific Rise in the eastern Pacific Ocean. Earthquakes may also
occur as a result of the plates moving apart.
1) On the computer click on the link for Station 2 Video 1. Watch the video.
2) On the computer click on the link for Station 2 Video 2. Watch the video.
3) On the computer click on the link for Station 2 Video 3. Watch the
video.
4) On Doodle Buddy:
a. Locate and put a Red dot at 60N and 30W
b. Locate and put a Red dot at 40 N and 30 W
c. Locate and put a Red dot at 15 N and 45 W
d. Locate and put a Red dot at 5 S and 20 W
e. Now draw a line connecting the dots to show the location of the
Mid Atlantic Ridge.
f. Draw arrows showing which direction the plates are moving.
5) Answer the following questions on Notes.
a. Which way are the plates moving?
b. The ridge lies under which ocean?
c. What is formed at this type of boundary?
d. What geologic event can occur at this type of boundary?
Moving and Shaking – Station 3
When two plates collide, one plate is sometimes pushed underneath the other.
This process occurs over a long period of time. The denser plate slides under the
plate that is less dense. This is similar to what happens in a mixture of oil and
water. Water is denser than oil so it settles underneath the oil. Place your hands
in front of you with your palms facing the floor as shown in the graphic. Push
your left hand slightly under your right hand. This motion demonstrates what
happens when one plate slides under the other. This is sometimes referred to as
a destructive boundary. The part of the plate that slides underneath melts due to
high temperatures and becomes magma. The newly formed magma is less dense
than the surrounding rock. The magma moves upward through the crust to form a
volcano. The Andes Mountains, located along the west coast of South America,
are a result of plate sliding beneath one another. The Aleutian Islands of Alaska
are another results of this type of plat movement. Earthquakes are common
along all of these boundaries.
1) On the computer click on the link for Station 3 Video 1. Watch the video.
2) On Doodle Buddy:
a. Locate the west coast of South America. Draw 10 small Green
dots along the coast and connect them with a line showing the
location of the Andes Mountains.
b. Locate and put an Orange dot at 55N and 160W
c. Locate and put an Orange dot at 50 N and 180 W
d. Connect the dots to show the location of the Aleutian Islands.
e. Draw arrows showing which direction the plates are moving at both
locations.
3) Answer the following questions on Notes.
a. What direction are the plates moving?
b. How are the islands and the mountains the same?
c. Why do you think we call the Andes Mountains and the Aleutian
Islands?
Moving and Shaking – Station 4
Some tectonic plates slide past each other. Place your hands in front of you,
side by side, with your palms facing the floor as shown in the graphic. Move your
right hand forward and your left hand backward. This type of movement occurs
along the California coast at the boundary between the North American and
Pacific Plates. These plate boundaries do not destroy of build up Earth’s crust.
The San Andreas Fault in California is a result of this type of boundary.
Earthquakes are the primary geological events occurring in this area due to
sliding plates. Complete the tasks below to better understand how the plate
boundary works.
1) On the computer click on the link for Station 4 Video 1. Watch the video.
2) On the computer click on the link for Station 4 Video 2. Watch the video.
3) On Doodle Buddy:
a. Locate and put a Yellow line at 40N and 120W for the location of
the San Andreas Fault.
b. Draw arrows showing which direction the plates are moving at both
locations.
4) Answer the following questions on Notes.
a. What way are the plates moving?
b. The San Andreas Fault is the boundary of what two plates?
c. What type of geologic event occurs at this type of boundary?