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

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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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