capas de la tierra Flashcards

(27 cards)

1
Q

What are the main layers of the Earth?

A

The main layers of the Earth are the crust, mantle, outer core, and inner core.

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2
Q

True or False: The Earth’s crust is the thickest layer.

A

False

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3
Q

Fill in the blank: The _______ is the layer of the Earth that is solid and rocky.

A

crust

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4
Q

Which layer of the Earth is composed mainly of silicate minerals?

A

The crust

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5
Q

What is the primary material that makes up the mantle?

A

The mantle is primarily composed of silicate and magnesium silicate minerals.

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6
Q

True or False: The outer core is liquid.

A

True

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7
Q

What is the state of matter of the inner core?

A

The inner core is solid.

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8
Q

Which layer of the Earth is responsible for generating the magnetic field?

A

The outer core

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9
Q

What is the approximate thickness of the Earth’s crust?

A

The Earth’s crust is approximately 5 to 70 kilometers thick.

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10
Q

Multiple Choice: What is the temperature range of the Earth’s inner core? (A) 4000-5000°C (B) 5000-6000°C (C) 6000-7000°C

A

B) 5000-6000°C

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11
Q

True or False: The mantle is less dense than the crust.

A

False

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12
Q

Fill in the blank: The mantle extends to a depth of about _______ kilometers.

A

2900

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13
Q

What is the primary composition of the outer core?

A

The outer core is primarily composed of liquid iron and nickel.

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14
Q

Which layer of the Earth has the highest pressure?

A

The inner core

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15
Q

Short Answer: What is the function of the Earth’s magnetic field?

A

The Earth’s magnetic field protects the planet from solar and cosmic radiation.

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16
Q

True or False: The Earth’s crust floats on the mantle.

17
Q

Multiple Choice: Which layer is the thickest? (A) Crust (B) Mantle (C) Outer Core (D) Inner Core

18
Q

What is the transition zone between the crust and mantle called?

A

The Mohorovičić discontinuity, or Moho.

19
Q

Fill in the blank: The boundary between the mantle and the outer core is called the _______.

A

Gutenberg Discontinuity

20
Q

Short Answer: How do scientists study the Earth’s interior?

A

Scientists study the Earth’s interior using seismic waves generated by earthquakes.

21
Q

True or False: The crust is uniform in thickness across the Earth.

22
Q

What is the term for the movement of tectonic plates in the Earth’s crust?

A

Plate tectonics

23
Q

Multiple Choice: Which layer is primarily liquid? (A) Crust (B) Mantle (C) Outer Core (D) Inner Core

A

C) Outer Core

24
Q

What is the primary driving force behind tectonic plate movement?

A

Convection currents in the mantle.

25
Short Answer: Name one method used to determine the composition of the Earth's layers.
One method is the analysis of seismic wave data.
26
True or False: The inner core is made up of molten rock.
False
27
Fill in the blank: The Earth's layers are categorized based on their _______ and _______.
composition; physical properties