The continents are in constant movement

[Pages:12]The continents are in con!stant movement!

Earth Science!

Science 10! Note and Activity Package for Chapter 12!

Note:!

If you lose this package it is your responsibility to print out a new copy from Ms. Veenstra's webpage:

Vocabulary! asthenosphere, continental drift theory, converging/diverging plates, earthquakes, epicentre, fault, hot spot, inner core, lithosphere, mantle, mantle convection, outer core, paleoglaciation, plate boundary, plate tectonic theory, primary waves, ridge push and slab pull, rift valley, secondary waves, spreading ridge, subduction zone, surface waves, tectonic plate, transform fault, trench, volcanic belt, volcanic island arc, volcanoes

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I can give examples of common devices that refract light.

Do's:

Chapter 12 Learning Goal I can draw labeled ray diagrams showing how images form in a plane mirror.

I describe the characteristics of images formed in a plane mirror.

I can experimentally distinguish between converging and diverging mirrors.

I I

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the focal length of a the image formed by

converging mirror. a curved mirror:

using a scaled ray diagram and using the mirror equation

Reference LG =

I can solve problems u1sin.gI: can describe evidence for continental drift theory (e.g., fossil Chapter 12.1

The definition of indeevx iodferenfrcaceti,onmountain belts, paleoglaciation)

Snell's Law

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experimentally experimentally

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!

Chapter 12.1

I can locate and describ-etthhee imwaogerlfdormdeisdtbryibauthtinonlenos:f volcanoes, earthquakes, mountain belts,

using a scaled ray diagtrraemnacnhdeussin,gmthiedm-oircroer aeqnuartiiodng. es, and rift valleys !

- hot spot and subduction zone eruptions !

Strengths: - magnetic reversals and age of rocks relative to spreading ridges

3. I can define plate tectonics, plate boundary, earthquake, trench, volcano, spreading ridge, subduction zone, hot spot

Chapter 12.2

4. I can identify the layers of the Earth.

Chapter 12.2

5. I can explain how mantle convection and ridge push and slab Chapter 12.2

Unit: Kinemaptuicll sare believed to contribute to plate motion. I can identify

sources of heat within the Earth that produce mantle convection

Knows:

and hot spot activity.

I can define and relate the terms: clock reading, position and event.

I can differentiate betw6ee.nIaccalonckdreeasdcinrgibaned taeticmteoinnitcervpalla. te boundaries, including transform LGC=hapter 12.2

I can define and relate distance and average speed.

I can define and relate bdiospulancdemaerniet asn,ddavivereargge evenlotcibtyo. undaries, convergent boundaries

I can differentiate betw(eoencescaalnarics -aondcveeactnorisc. crust, oceanic- continental crust, and

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12.2

? displacement & average velocity, distance travelled & average speed, instantaneous velocity

I can construct position8-t.imI ecgaranphesxbpasleadionn hdaotawfropmlavtaeriomusosovuercmese. nts produces composite and Chapter 12.2

I can construct velocitys-htimieelgdravphoslcbaasnedooensdata from various sources.

I can use velocity-time graphs to determine:

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? instantaneous velocity9,.dIispclaacnemeexntp, alaveinragheovewlocsitey,isacmceilcerawtioanves are used to describe

Chapter 12.2

Strengths: earthquakes and study Earth's interior composition.

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Chapter 12.1 Evidence for Continental Drift!

!!

Activity 12.1!

Before you read answer the following questions!

!!!1. Do you think it is possible for the continents to move? If so, do you think they are moving now?!

!!!2. How could someone figure out whether or not the continents move?!

Now read p. 506-507 and take notes about the following:!

Continental Drift Theory

!!!Who was Alfred Wegner?! !!!!!What is the Continental Drift Theory?! !!!What is Pangaea and how did it fit into the Continental Drift Theory?!

!Pangaea puzzle!

Procedure:!

1. Cut out each continent, trimming the pieces just to the edge of the dotted lines. The dotted lines represent the true continental edges, the continental shelves.!

2. Use the clues provided in the legend on the right and the shapes of the continents to help you Fossils reconstruct Pangaea. Piece together the continent shapes into a supercontinent. Remember, Pangaea broke up and the continents moved apart to their present locations, so a modern world map may give you some clues as to how they all fit together. When you have the best fit possible, check with Ms. Veenstra and then glue the continents in place on the next page.!

!

Glacier Deposits

Matching Mountains

Goal Deposits

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!

Pangaea!

! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

! 1.! Which continents were easiest to fit together? Explain why. !

!

! 2.! Were there any pieces of Pangaea that you found difficult to place? If so, what other evidence would have helped you to place these pieces? !

!

! 3.! Hypothesize where the continents might be situated in 200 million years. !

! !

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!

Chapter 12.1 Notes!

Evidence for continental drift

Read p. 508-509 and describe why the following was consider evidence for continental drift!

!!!!!Matching Fossils!

Climatic Evidence!

!!!!!Paleoglaciology

Coal Deposits!

Plate Tectonics Theory - class notes

!

!

Further Evidence for Continental Drift - class notes The Hawaiian Hotspots!

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Seafloor spreading at the Mid-Atlantic Ridge!

ocean ridge thin sediment thick sediment

young rocks old rocks

!

!Seafloor spreading at the Mid-Atlantic Ridge!

!!

!

!

Paleomagnetism Discussion Questions!

To answer the following question see the picture on the board.! 1. Based on the diagram, how many times has the Earth's magnetic field reversed during the past

four million years? ! 2. Approximately when did the current interval of normal polarity begin? !

3. If there had been compasses four million years ago, which direction would compass needles have pointed? !

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12.2 Layers of the Earth!

Use p. 519 to fill out notes about the different layers of the Earth.!

Name: ___________________! Solid or Liquid! Thickness: _____________________! Made out of: _________________________________________! Other facts__________________________________________!

!

Name: ___________________! Solid or Liquid! Thickness: _____________________! Made out of: _________________________________________! Other facts__________________________________________!

!

Name: ___________________! Solid or Liquid! Thickness: _____________________! Made out of: _________________________________________! Other facts__________________________________________!

!

Name: ___________________! Solid or Liquid! Thickness: _____________________! Made out of: _________________________________________! Other facts__________________________________________!

!

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!

Use the following geothermInasl midoedetlhoef thEeaEratrhthdtiosacnuswsesriqounesqtiouness7t1ioannds7!2.

Earth's Surface

0 1000

Temperature of Magma

Depth (km)

2000 3000

Iron Melts

4000

Earth's Core

5000 6000

Iron Solidifies

1000

2000

3000

4000

Temperature in the Earth (?C)

5000

The geothermal model was constructed using seismic evidence and

!!!!!!!!!!!!!!!!!!!!

!Use thelagboraraptohryaebxopevreimteonths eolfpthyeopuropaenrtsiewseorf rtohcek afot dllioffewreinntgteqmupeesrattiuornessa:!nd pressures.

711.. UWshinagt thhaepgpeoetnhsertmoatlhmeotdeeml, ipdeernatitfuyrteheadseypothuogf othedeuepppeerrbionutondtahrey oEfatrhtehE?!arth's outer core.

!! A. 200 km ! B. 2700 km

2. WCh. at52d0o0ykomu think happens to the density as you go deeper into the earth? Why?!

! D. 6400 km !!!!72. Why does melted iron become solid again at a depth of 5200 km? !3. Using the graph, identify the depth of the upper boundary of the Earth's outer core. !

A. Pressure increases.

! B. Magnetism increases. C. Temperature decreases. D. Force of gravity decreases.

!

4. Why does melted iron become solid again at a depth of 5200 km? !

! !

5. How do you think we know what is inside the Earth?!

Science 10 ? 2011/12 Released Exam B

!

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