Earth's layers

The solid layer with plasticity in the upper mantle that is located just below the lithosphere; lithospheric plates "float" and move on this layer.

• Asthenosphere
• Inner core
• Outer core
• Physical properties

The thin, solid, outermost layer of Earth; made of less dense silicates and is either continental (landmasses) or oceanic (ocean floors).

• Crust
• Physical properties
• Lithosphere
• Plate tectonic theory

The amount of matter in a given space or volume; it is a relationship between mass and volume. Less dense matter will form layers above denser matter.

• Density
• States of matter
• Physical properties
• Inner core

The divisions of the composition of Earth determined by either chemical composition or by the physical state of matter.

• Earth's layers
• Outer core
• Plate tectonic theory
• Mantle

The sphere of solid nickel and iron at the center of Earth; surrounded by the liquid outer core.

• Inner core
• Plate tectonic theory
• Plasticity
• Outer core

The cool, rigid, outermost layer of Earth that consists of the crust and the uppermost part of the mantle; broken into pieces or segments called plates.

• Lithosphere
• Earth's layers
• States of matter
• Plasticity

The solid layer of Earth between the crust and the core; made of dense silicates.

• Mantle
• Lithosphere
• Earth's layers
• Pressure

The outer layer of Earth's core; surrounds the inner core and is made of liquid nickel and iron.

• Outer core
• Mantle
• Density
• States of matter

Which layer of Earth is located above the outer core?

• crust
• inner core
• mantle
• lithosphere

Which of these two layers is a solid?

• innercore
• Outercore