capas de la tierra Flashcards
(27 cards)
What are the main layers of the Earth?
The main layers of the Earth are the crust, mantle, outer core, and inner core.
True or False: The Earth’s crust is the thickest layer.
False
Fill in the blank: The _______ is the layer of the Earth that is solid and rocky.
crust
Which layer of the Earth is composed mainly of silicate minerals?
The crust
What is the primary material that makes up the mantle?
The mantle is primarily composed of silicate and magnesium silicate minerals.
True or False: The outer core is liquid.
True
What is the state of matter of the inner core?
The inner core is solid.
Which layer of the Earth is responsible for generating the magnetic field?
The outer core
What is the approximate thickness of the Earth’s crust?
The Earth’s crust is approximately 5 to 70 kilometers thick.
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
B) 5000-6000°C
True or False: The mantle is less dense than the crust.
False
Fill in the blank: The mantle extends to a depth of about _______ kilometers.
2900
What is the primary composition of the outer core?
The outer core is primarily composed of liquid iron and nickel.
Which layer of the Earth has the highest pressure?
The inner core
Short Answer: What is the function of the Earth’s magnetic field?
The Earth’s magnetic field protects the planet from solar and cosmic radiation.
True or False: The Earth’s crust floats on the mantle.
True
Multiple Choice: Which layer is the thickest? (A) Crust (B) Mantle (C) Outer Core (D) Inner Core
B) Mantle
What is the transition zone between the crust and mantle called?
The Mohorovičić discontinuity, or Moho.
Fill in the blank: The boundary between the mantle and the outer core is called the _______.
Gutenberg Discontinuity
Short Answer: How do scientists study the Earth’s interior?
Scientists study the Earth’s interior using seismic waves generated by earthquakes.
True or False: The crust is uniform in thickness across the Earth.
False
What is the term for the movement of tectonic plates in the Earth’s crust?
Plate tectonics
Multiple Choice: Which layer is primarily liquid? (A) Crust (B) Mantle (C) Outer Core (D) Inner Core
C) Outer Core
What is the primary driving force behind tectonic plate movement?
Convection currents in the mantle.