Learner Resource 1

Starter QuizWhat do we know and what needs consigning to room 101?Room 101 is a BBC comedy television series based on the radio series of the same name, in which celebrities are invited to discuss their pet hates and persuade the host to consign those hates to oblivion in Room 101. You can watch a clip here.

https://www.youtube.com/watch?v=K0o38vsElOk

Our understanding of plate tectonics is developing all the time. Sometimes the changes are so dramatic that what we thought we knew needs re-thinking. So what do we need to rethink and what do we know for sure? What incorrect or out of date knowledge about Plate Tectonics are we going to consign to Room 101?

Part One: True / False Quiz Statements

Statement True or False

1. The outer layer of the Earth is made up of ‘crustal plates’

2. The average rate of sea floor spreading in the Atlantic Ocean is 0.025 metres per year.

3. The mantle is semi-solid or semi-liquid.

4. Tectonic plates move because of convection currents in the mantle.

5. At destructive margins descending plates melt and create magma at their leading edge due to the frictional heat.

6. There is a hot, liquid layer within the mantle that is the source for the lava erupted on the surface.

7. Most earthquakes are concentrated along boundaries between major tectonic plates

.

8. Scientists are able to track the movement of tectonic plates using GPS

9. Volcanic island arcs develop along convergent margins on the

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overriding plate above an oceanic plate which is sinking into the mantle.

10. Accretionary wedges develop along subduction zones where sediments and other rocks are scraped off the descending plate and piled up against the leading edge of the overriding plate.

Part Two; Multiple Choice Questions

1. Which one of the following mechanisms is now considered to be the most important in explaining the movement of plates?

A Ridge push

B Slab pull

C Convection

D Conduction

E Intrusion

2. What is the main topographic feature that is found along the centre of mid-ocean ridges

A Ocean trench

B Island arc

C Submarine mountain ranges

D Rift valley

E Earthquakes

3. Which one of the following Islands cannot be linked to processes operating at plate margins?

A Montserrat

B Hawaii

C Iceland

D Aleutian islands

E Japan

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4. Which is the deepest ocean trench?

A Japan Trench

B Kuril–Kamchatka Trench

C Philippine Trench

D Mariana Trench

E Tonga Trench

5. Which is the World’s largest volcano?

A Mauna Loa

B Mount St Helens

C Mount Vesuvius

D Mount Pinatubo

E Mauna Kea

6. Which phrase best describes high-standing mountainous areas?

A They experience rapid erosion that thins the crust and causes the area to subside

B They are underlain by greater than average thicknesses of lower density, crustal rocks

C They subside rapidly to compensate for erosion

D They have thicker, higher density, mantle rocks beneath them at shallow depths

E They are found at subduction zones

7. Where are Accretionary wedges formed?

A At the edge of the overriding plate facing a subduction zone

B At the base of a passive continental margin

C On the oceanic plate side of a transform fault

D Around oceanic plate volcanoes fed by long-lived hot spots in the mantle

E At a conservative plate margin

8. Which term applies to the process of mountain building?

A Orogneisses

B Orogeny

C Orthogeny

D Orthogonal

E Orography

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9. Which of the following is not found at subduction zones?

A Deep ocean trenches

B Mid ocean ridges

C Volcanic arcs

D Descending lithosphere

E Volcanoes

10. Which of the following is a young, currently rising mountain range that resulted from continental collision?

A Appalachian Mountains

B Grampian Mountains

C Himalayan Mountains

D Laurentian Mountains

E Blue Ridge Mountains

Try this Quiz again at the end of the unit. Check out how many more answers you get right and see if you can clearly explain your answers this time!

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