Earth's Layers- GA Standard S6E5.a

The list describes one of Earth's layers.

• * Composed of iron and nickel

• * Contains both liquid and solid parts

• * Extremely hot

The list is describing

• 
  the core because strong pressure and temperature create both liquid and solid parts.

• the core because weak pressure and temperature create a hot environment.

• the mantle because strong pressure and temperature create a hot environment.

• the mantle because weak pressure and temperature create both liquid and solid parts.

The diagram shows the layers of Earth.

Which statement best describes Layer 3 and Layer 5?

• 
  Layer 3 is the crust and Layer 5 is the mantle; both layers are hotter than Layer 1.

• 
  Layer 3 is the mantle and Layer 5 is the crust; both layers are hotter than Layer 1.

• Layer 3 is the mantle and Layer 5 is the crust; both layers are cooler than Layer 1.

• Layer 3 is the crust and Layer 5 is the mantle; both layers are cooler than Layer 1.

Which layer of Earth is the most diverse in terms of temperature range and its composition, which includes containing silica, oxygen, aluminum, and magnesium?

• the crust

• the mantle

• 
  the inner core

• 
  the outer core

The picture shows a simple model of Earth's layers.

Which portion of Earth contains plates, the movement of which can cause earthquakes and volcanoes?

• the lithosphere, containing the crust at Z and part of the upper mantle at Y

• the asthenosphere, containing the outer core at Y and the inner core at X

• 
  the inner core at V, which is made of liquid aluminum

• the lower mantle at W, which is made of solid iron

Tags

NGSS.MS-ESS2-3

Tectonic plates that make up Earth's crust move because of _________________ in Earth's mantle.

• conduction currents

• convection currents

• gravity

• magnetic forces

Tags

NGSS.MS-ESS2-3

From least to most dense, what is the correct order of Earth's four major layers?

• crust, outer core, inner core, mantle

• inner core, outer core, mantle, crust

• crust, mantle, outer core, inner core

• mantle, inner core, outer core, and crust

Xavier made a list describing Earth's lithosphere.

1. 1. Composed mainly of rock

2. 2. Found deep within the Earth

3. 3. Forms a nearly continuous shell

4. 4. Interacts with the hydrosphere

5. 5. Moves and flows like liquid

Which parts of Xavier's list are incorrect?

• 1 and 2

• 1 and 4

• 2 and 5

• 3 and 4

Which statement correctly describes the outer core?

• Composed primarily of magnesium, oxygen, aluminum, and silicon, the outer core is a dense, solid layer, and is responsible for the motion of Earth's plates.

• Composed primarily of iron and nickel, the outer core is a liquid layer that rotates around the inner core, and is responsible for Earth's magnetic field.

• Composed primarily of silica particles, the outer core is the outermost layer of Earth, and varies in temperature and thickness.

• Composed primarily of magnesium and iron particles, the outer core is the middle layer of Earth, and contains the most heat.

Why does the inner core of Earth remain solid even though it is very hot?

• The Coriolis effect creates a centralized gravitational spin at Earth's core.

• The pressure is so great at the inner core that it causes atoms to push together.

• The inner core is not as hot as the outer core.

• The inner core is made of the same material as the mantle.

Tags

NGSS.HS-ESS2-3

What is the name of the layer of hot, ductile material on which the lithospheric plates are riding?

• core

• crust

• divergence

• asthenosphere