Notes-ESS.6.2.1 Structure of the Earth

Multiple Choice

What are the two main classifications of Earth's layers mentioned in the lesson?

• Chemical and Mechanical

• Chemical changes

• Land and water

• Atmosphere and crust

Multiple Choice

The outermost layer of the Earth is called the ___.

• crust
• core

• mantle

• outer core

Multiple Choice

Which of the following statements about Earth's crust is correct?

• It is the thickest layer of Earth.

• It is the least dense layer of Earth.

• It is made mostly of iron.

• It is the innermost layer of Earth.

Multiple Select

Which elements make up the majority of Earth's crust? Select all 3 that apply.

• Oxygen

• Silicon

• Iron

• Aluminum

Multiple Choice

Which layer of the Earth contains most of its mass and is made up of dense, hot molten rock?

• Crust

• Mantle

• Core

• Lithosphere

Multiple Choice

Which layers of the Earth are mostly composed of iron and nickel?

• Crust

• Mantle

• Core

• Lithosphere

Multiple Choice

What is the main difference between the lithosphere and the asthenosphere in terms of their physical properties?

• The lithosphere is solid and brittle, while the asthenosphere is fluid and plastic.

• The lithosphere is fluid and plastic, while the asthenosphere is solid and brittle.

• Both are solid and brittle.

• Both are fluid and plastic.

Multiple Choice

Which layer of the Earth is less rigid and flows very slowly, located directly beneath the lithosphere?

• Asthenosphere

• Mesosphere

• Outer Core

• Inner Core

Multiple Select

Select all statements that are true about the outer core of the Earth.

• It is made up of liquid iron and nickel.

• It is responsible for the magnetosphere.

• It is the hottest layer of the Earth.

• Temperatures can reach 4000 degrees Celsius.

Multiple Choice

What are the main layers of the Earth, and how do their position, composition, and density differ?

• Crust, mantle, core; position, composition, and density vary between each layer

• Crust, mantle, core; all layers have the same composition and density

• Crust, mantle, core; only the position varies, not composition or density

• Crust, mantle, core; only the core has a different density