Earth's Internal Layers

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

¿Cuál es la capa más interna de la Tierra?

La corteza
La litosfera
El núcleo interno (correct)
El manto superior

¿Cuál es la composición principal del manto?

Hierro y níquel
Olivino, piroxeno y granate (correct)
Peridotita y eclogita
Rocas y minerales

¿Cuál es la función del núcleo externo?

Generar el campo magnético de la Tierra (correct)
Regular la rotación de la Tierra
Mantener la temperatura de la Tierra
Sostener la corteza oceánica

¿Cuál es la diferencia principal entre la corteza continental y la corteza oceánica?

La composición (A) Signup and view all the answers

¿Cuál es la capa que se divide en tres secciones: superior, media e inferior?

El manto (B) Signup and view all the answers

Match the following internal layers of the Earth with their corresponding temperature ranges:

Crust = 500-900°C Mantle = 2,000-3,000°C Outer Core = 4,000-6,000°C Inner Core = 5,000-6,000°C Signup and view all the answers

Match the following internal layers of the Earth with their composition:

Crust = Rocks and minerals, including granite, basalt, and sedimentary rocks Mantle = Hot, viscous rock Outer Core = Iron (~85%) and nickel (~10%) Inner Core = Iron-nickel alloy Signup and view all the answers

Match the following internal layers of the Earth with their characteristics:

Crust = Solid, ranging in thickness from 5-70 km Mantle = Hot, viscous, and solid but able to flow slowly over time Outer Core = Liquid and responsible for generating the Earth's magnetic field Inner Core = Solid and with a pressure of over 3.5 million times that of the atmospheric pressure at sea level Signup and view all the answers

Match the following internal layers of the Earth with their depth ranges:

Crust = 5-70 km Mantle = 35 km to 2,900 km Outer Core = 2,250 km Inner Core = 1,220 km in diameter Signup and view all the answers

Match the following internal layers of the Earth with their divisions:

Crust = Continental and oceanic crust Mantle = Upper and lower mantle Outer Core = No divisions Inner Core = No divisions Signup and view all the answers

Study Notes

Earth's Internal Layers

Crust

Outermost solid layer of the Earth
Thickness: 5-70 km
Composition: rocks and minerals
Density: 2.5-3.0 g/cm³
Divided into two types: continental and oceanic crust

Mantle

Thick layer of hot, viscous rock beneath the crust
Thickness: 2,900 km
Composition: olivine, pyroxene, and garnet
Density: 3.3-4.3 g/cm³
Divided into upper and lower mantle

Upper Mantle

Thickness: 400 km
Temperature: 500-900°C
Composition: peridotite and eclogite
Lithosphere: outermost solid portion of the mantle

Lower Mantle

Thickness: 2,500 km
Temperature: 2,000-3,000°C
Composition: bridgmanite and ferropericlase
Divided into three layers: upper, middle, and lower

Outer Core

Liquid layer of iron and nickel
Thickness: 2,250 km
Temperature: 4,000-6,000°C
Composition: iron (~85%), nickel (~10%), and lighter elements
Responsible for generating Earth's magnetic field

Inner Core

Solid, iron-nickel alloy at the center of the Earth
Thickness: 1,220 km
Temperature: 5,000-6,000°C
Composition: iron (~98%) and nickel (~2%)
Solid due to extremely high pressure

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Discover the composition, density and temperature of the Earth's internal layers, from the crust to the inner core. Learn about the different layers and their characteristics.