Science Lesson 6: What Makes It Move? Flashcards

1
Q

TRUE OR FALSE: The driving force used in Continental Drift Theory is gravity, according to Alfred Wegener.

A

TRUE

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2
Q

Who discredited the Continental Drift Theory and said the Earth is “too rigid” to drive itself?

A

Harold Jeffrey

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3
Q

First-Generation Geologist and Geophysicist to accept Alfred Wegener’s theory

A

Stanley Runcorn

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4
Q

Heat transferred from core to crust

A

Mantle Convection

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5
Q

Transfer of heat through fluid-motion; analogy: heating water in a pan

A

Convection

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6
Q

The preferred model wherein the lithosphere sinks

A

Whole-mantle convection model

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7
Q

Where lithosphere moves to core-mantle boundary

A

Lithospheric Slab Terminal

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8
Q

Model where layers independently work to transfer heat; process does NOT involve mixing

A

Layer-cake model

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9
Q

Layer-Cake model’s 2 zones of convection:

A
  1. Upper Mantle’s thin layer
  2. Thicker layer below upper part
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10
Q

Distinct; from deeper portion

A

Basaltic Composition

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11
Q

Uniform or consistent in nature

A

Chemical Composition

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12
Q

Subduction of cooler lithosphere; considered as driving mechanism of plate movement

A

Slab Pull

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13
Q

Results from elevated position of oceanic ridge; slabs slide and push due to gravity

A

Ridge Push

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