Earth's Layers and Composition

The video tutorial by Miss Valence covers the Earth's interior, focusing on its layers: inner core, outer core, mantle, asthenosphere, lithosphere, and crust. It explains the composition and density of each layer, using the Earth Science Reference Table (ESRT) as a guide. The tutorial highlights the importance of understanding these layers without memorization, emphasizing the use of reference materials. Additionally, it discusses convection currents in the asthenosphere and the differences between continental and oceanic crusts.

What page of the Earth Science Reference Table is used to study Earth's interior?

• Page 20

• Page 15

• Page 10

• Page 5

Which layer of Earth is the outermost and thinnest?

• Inner Core

• Outer Core

• Crust

• Mantle

What elements primarily compose the inner core?

• Iron and Nickel

• Magnesium and Aluminum

• Carbon and Hydrogen

• Silicon and Oxygen

What is the density range of the outer core?

• 9.9 to 12.2

• 3.4 to 5.6

• 12.8 to 13.1

• 2.7 to 3.0

Which layer is directly above the stiffer mantle?

• Inner Core

• Outer Core

• Crust

• Asthenosphere

What is the density range for the stiffer mantle and asthenosphere?

• 2.7 to 3.0

• 12.8 to 13.1

• 9.9 to 12.2

• 3.4 to 5.6

What two components make up the lithosphere?

• Inner Core and Outer Core

• Crust and Rigid Mantle

• Asthenosphere and Mantle

• Outer Core and Mantle

What type of crust is less dense, continental or oceanic?

• Oceanic

• Both have the same density

• Continental

• Neither has density

What type of rock primarily composes the oceanic crust?

• Granite

• Limestone

• Basalt

• Sandstone

In which layer do convection currents occur?

• Crust

• Inner Core

• Outer Core

• Asthenosphere