Tectonic Jeopardy!. TECtonic Jeopardy! Earth’s Layers Heat Transfer Continental Drift Sea-Floor...
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Transcript of Tectonic Jeopardy!. TECtonic Jeopardy! Earth’s Layers Heat Transfer Continental Drift Sea-Floor...
Tectonic Tectonic Jeopardy!Jeopardy!
TECtonic Jeopardy!TECtonic Jeopardy!Earth’s Earth’s LayersLayers
Heat Heat TransferTransfer
Continental Continental DriftDrift
Sea-Floor Sea-Floor SpreadingSpreading
Plate Plate TectonicsTectonics
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
How do scientists know about Earth’s
interior?
By measuring seismic waves from
earthquakes.
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Starting at the surface, what are the layers of the Earth, in order?
1. Crust2. Mantle3. Outer Core4. Inner Core
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Ocean crust is made of _______, while the
Continental crust is made of _______. Which is
more dense?
Basalt & Granite. Basalt / Ocean crust
is more dense.
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Describe the Mantle. Talk about its thickness
and state of matter.
The Mantle is the layer of molten material beneath the crust. It has a plastic-like state of matter and is the thickest of Earth’s layers.
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What causes Earth’s magnetic field, and why is this field important?
The spinning and churning of Earth’s liquid iron outer core. The magnetic field protects us
from the Sun’s solar winds.
Final Jeopardy
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Define heat.
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The energy transferred from a hotter object to a
colder one.
TrueTrue or FalseFalse: there are 4 types of heat transfer.
Name them!
False. There are 3 types of heat transfer: Conduction, Radiation, & Convection.
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Define RadiationRadiation heat transfer. Give two examples.
Radiation is heat transfer through space (do not touch directly). Examples: the Sun
& camp fire.
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If the formula for DensityDensity is MassMass divided by VolumeVolume, how can heat
change an object’s density?
Heat = EnergyEnergy. Giving an object EnergyEnergy lets the particles move
faster & further away from each other, increasing VolumeVolume and
decreasing DensityDensity.Back to Menu
Describe the entire process pictured below.
1. Pot is heated by stove - ConductionConduction2. Water is heated by pot - ConductionConduction3. Heated water spreads out (energy),
+Volume+Volume & -Density -Density so it rises.4. Spreads out at top of pot, bumps into
other particles, -Energy-Energy.5. Less energy means -Volume-Volume,
+Density+Density, water sinks.Final
JeopardyBack to Menu
Which scientist proposed the theory of Continental DriftContinental Drift?
a)a)Harry HessHarry Hessb)b)J. Tuzo WilsonJ. Tuzo Wilsonc)c)Alfred WegenerAlfred Wegenerd)d)Mr. AntonelloMr. Antonello
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a) Harry Hess – Sea-Floor Spreading
b) J. Tuzo Wilson – Plate Tectonics
c)c) Alfred Wegener – Continental Alfred Wegener – Continental DriftDrift
d) Mr. Antonello – Theory of Awesomeness
How many pieces of evidence for Continental Drift does the photo below contain? What are they?
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Three pieces of evidence. A)A) The continents fit like puzzle pieces. B)B)
Mesosaurus fossils were found on both continents. C)C) Africa & S. America have
the same folded mountains.
What is Wegener’s Theory of Continental Drift and why was it
rejected?
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The continents were once a supercontinent called PangeaPangea, and are slowly moving, even
now. Wegener had no evidence to explain what caused the
continents to move.
While researching in Antarctica, you discover the fossil remains
of the tropical plant of GlossopterisGlossopteris. This plant is native to Australia. What does this tell
you about Antarctica?
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•Antarctica and Australia were at one time connected (since the plant can not migrate).•Antarctica once had a tropical climate.
What do the reversing magnetic stripes on the ocean floor reveal?
Use this information to explain the difference between “magneticmagnetic” North and “geographicgeographic” North.
Final Jeopardy
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Stripes tell us that magnetic poles reverse every 300,000 years.
GeographicGeographic North is always at 90⁰ North. MagneticMagnetic North is where the
magnetic field originates.
Why is the theory of Sea-Floor Spreading important?
It provides the final piece of evidence – the mechanism –
for Continental Drift.
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Describe the Mid-Ocean Ridge and why it’s
important.
Underwater mountain range where magma cools to form
new crust. Stretches across all the oceans of the world.
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Where is old crust destroyeddestroyed and what is it called when the crust sinks
back underneathunderneath, into the mantle?
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The crust is destroyed at deep-sea Trenches Trenches in a process
known as SubductionSubduction.
Studying the crust at the Mid-Ocean ridge reveals 3 pieces
of evidence for Sea-floor Spreading. What are they?
1. Formation of “pillow” basalts2. Reversing magnetic stripes3. Relative age dating of core
samples
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Describe the process of Sea-floor Spreading and why it
is like a conveyor belt.
1. Magma rises at the Mid-Ocean RidgeMid-Ocean Ridge2. Entering the ocean, magma cools into BasaltBasalt3. New magma rises and cools, spreadingspreading the
rock out4. Old crust subductssubducts under less dense crust
and melts5. The cycle repeats!
Final Jeopardy
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Plate Tectonics combines the theories of Alfred Wegener Alfred Wegener & Harry Harry HessHess with a method of heat transferheat transfer.
Name the theories and method.
Continental Drift Continental Drift & Sea-Sea-Floor SpreadingFloor Spreading and the heat transfer method of
ConvectionConvection.
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Plate Tectonics states that plates in Earth’s lithospherelithosphere move by
floating on the mantle. What are the 22 types of plates?
Plates can be classified as either ContinentalContinental or OceanicOceanic crust.
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List the 3 types of boundaries symbolized
by the following motions.
Convergent, Divergent, and Transform boundaries.
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Locate & name the types of plate boundaries in the picture below. What is the missing boundary?
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1) Convergent: Oceanic/Oceanic crust Subduction zone
2) Divergent: Mid-Ocean Ridge3) Transform Boundary (not shown)
Final Jeopardy
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You have 30 seconds to name as many plates as you can. Spelling counts!
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