Transcript Respect the teacher and your peers

Science Class Connect Rules
• Respect the classroom and our privileges
– Do not pollute the chat box
– Stay on topic
– Science class connects are not free chat sessions
• Respect the teacher and your peers
– Be appropriate and use good language
– Be kind to others
– Class connects are a time to learn
• Have fun!
– Science is cool and full of lots of fun lessons and labs!
If you are unable to follow these three rules your privileges will be taken away!
JEOPARDY!!!!
Which phrase best describes
subduction?
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A. Sinking of one tectonic plate under another
B. Movements of tectonic plates across the
earth’s surface
C. Spreading apart of two tectonic plates
D. Collision between two tectonic plates
The class says:
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The answer is:
A. Sinking of one tectonic
plate under another
Which force is responsible for seafloor
spreading?
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A. Gravity in the crust
B. Gravity in the mantle
C. Convection in the mantle
D. Convection in the crust
The class says:
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The answer is:
C. Convection in the mantle
Which causes seismic waves?
A. Movements of the core
B. Convection in the mantle
C. Movements of the plates
D. Gravity in the mantle
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The class says:
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The answer is:
C. Movements of the plates
Where is a rift valley most likely to occur?
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A.At a convergent boundary between an oceanic
plate and a continental plate.
B.At a convergent boundary between two
continental plates
C.At a divergent boundary in a continental plate
D.At a divergent boundary in an oceanic plate
The class says:
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The answer is:
C. At a divergent boundary in a
continental plate
Which event is the most common at
oceanic-oceanic convergent boundaries?
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A.Volcanic mountain ranges
B.Earthquakes
C.Rift valleys
D.Island arcs
The class says:
The answer is:
D. Island arcs
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What do the yellow arrows in this
illustration represent?
A.Convection in the lithosphere
B.Convection in the asthenosphere
C.Direction of earth’s magnetic field.
D.Movement of earth’s tectonic plates
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The class says:
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The answer is:
B. Convection in the asthenosphere
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Which changes occur in the
composition of the earth’s layers from
the surface to the core?
A.The material is hotter and denser
B.The material is hotter and less dense
C.The material is cooler and denser
D.The material is cooler and less dense
The class says:
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The answer is:
A. The material is hotter and denser.
What feature will form as a result of
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the movement displayed in the
illustration?
A. Deep-sea trench
B. Transform boundary
C. Mid-ocean ridge
D. Convergent boundary
The class says:
The answer is:
C. Mid-ocean ridge
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Which prevented many geologists from
accepting Wegener’s theory of continental drift?
A.
B.
C.
D.
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Wegener could not explain how the continents
in the Northern Hemisphere fit together
Wegener could not explain how similar
geological features could be continued from
one continent to another.
Wegener could not explain how the continents
could move through the sea floor
Wegener could not explain how similar fossils
could be on difference continents.
The class says:
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The answer is:
C. Wegener could not explain how the
continents could move through the
seafloor.
Which have scientists learned from studying
seismic waves that travel through earth’s
interior?
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A. The crust of the earth is liquid
B. There are no finite boundaries between the
layers. They mesh into one another
C. The inner core of the earth is liquid
D. The layers of the earth increase in density as
one moves toward the earth’s center
The class says:
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The answer is:
D. The layers of the earth increase in
density as one moves toward the earth’s
center