Earth's Structure (ESS.6.2.1)

What is Layer 5?

• The crust, a thin layer of low-density rock composed of continental and oceanic portions

• The outer core, composed of dense, solid iron, producing most of Earth's atmosphere

• The mantle, a thick layer of high-density rock with inner and outer portions

• The lithosphere, composed of circulating semiliquid, producing most of Earth's heat

Tags

NGSS.MS-ESS2-1

What is Layer 4?

• Solid, dense crust.

• Solid, brittle upper mantle.

• Liquid, quickly rotating inner core.

• Semiliquid, slow moving outer core.

The innermost layer of Earth is the

• lithosphere.

• inner core.

• mantle.

• crust.

Which part of Earth may act like a liquid?

• inner core

• crust

• outer core

• lithosphere

Which statement best describes Layer 1 and Layer 2?

• Layer 1 is the inner core and solid. Layer 2 is the outer core and liquid.

• Layer 1 is the outer core and liquid. Layer 2 is the inner core and solid.

• Layer 1 is the inner core and not hot. Layer 2 is the outer core and very hot.

• Layer 1 is the outer core and not dense. Layer 2 is the inner core and very dense.

Which layer of Earth is composed of iron and nickel, contains both liquid and solid parts, and is extremely hot?

• 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.

Where are the asthenosphere, mantle, and core labeled on a model of Earth's layers?

• Core, Mantle, Asthenosphere

• Asthenosphere, Mantle, Core

• Mantle, Asthenosphere, Core

• Mantle, Core, Asthenosphere

Which statement correctly describes the outer core?

• The outer core is a dense, solid layer composed of magnesium, oxygen, aluminum, and silicon, responsible for Earth's plate motion.

• The outer core is a liquid layer composed of iron and nickel, rotating around the inner core, responsible for Earth's magnetic field.

• The outer core is the outermost layer of Earth, composed of silica particles, varying in temperature and thickness.

• The outer core is the middle layer of Earth, composed of magnesium and iron particles, containing the most heat.

Which is Layer 1?

• the lithosphere, where liquid magma convects

• the inner core, a solid, dense layer of iron

• the crust, liquid and composed of nickel and iron

• the outer core, a rigid layer with low temperatures

Which layer is thin, brittle, and composed primarily of silica?

• the crust

• the mantle

• the inner core

• the outer core