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Science > Igneous rock test study guide > Flashcards

Igneous rock test study guide Flashcards

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1
Q

How is igneous rock formed?

A
  • Cooling of molten rock inside earth- intrusive igneous rock
    Cooling of molten rock outside earth- extrusive igneous rock
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2
Q

What makes up Earth’s crust?

A
  • Topmost layer
  • Continental and Oceanic Crust
  • Solid Rock
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3
Q

What makes up Earth’s mantle?

A

Upper mantle- Solid rock
Middle Mantle- Semi-Solid: Some rock: Some Molten Rock
Lower Mantle- Liquid: Molten Rock

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4
Q

What is the difference between lava and magma?

A

Magma- Found underneath the earth and is used to create intrusive igneous rock
Lava- Found Outside the earth and is used to create extrusive igneous rock

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5
Q

How is extrusive igneous rock formed?

A
  • Formed outside the earth
  • Formed from lava
  • Solidified Lava
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6
Q

How is intrusive igneous rock formed?

A
  • Formed inside the earth
  • Formed from magma
  • Solidified Magma
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7
Q

What crystal size is in intrusive igneous rock?

A

Large crystals

  • Cooling rate is slower- more time to form
  • Small temp. difference between lower mantle and crust
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8
Q

What crystal size is in extrusive igneous rock?

A

Small crystals

  • Cooling rate is faster- less time to form
  • Large temp. difference between the inside of earth and the atmosphere
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9
Q

What factor determines crystal size

A

Cooling rate

  • Cooling rate is slower- more time to form: Larger
  • Cooling rate is faster- less time to form: Smaller
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10
Q

Which of Earth’s layers form the lithosphere?

A

Upper mantle and the crust: Solid Rock

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11
Q

Which of Earth’s layers form the asthenosphere?

A

Middle Mantle: Semi-Solid- Some rock . . .Some Molten Rock

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12
Q

State of Matter- Continental Crust

A

Solid Rock

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13
Q

State of Matter- Oceanic Crust

A

Solid Rock

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14
Q

State of Matter- Upper Mantle

A

Solid Rock

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15
Q

State of Matter- Middle Mantle

A

Semi-Solid: Some Solid Rock. . .Some Molten Rock

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16
Q

State of Matter- Lower Mantle

A

Liquid- Molten Rock

17
Q

Result of Cooled, Solidified Magma

A

Intrusive Igneous Rock

18
Q

Result of Cooled, Solidified Lava

A

Extrusive Igneous Rock

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