Earth’s Layers + Plate Tectonics

Which compositional layer is the thinnest?

• Mantle

• Crust

• Core

• Lithosphere

Describe the asthenosphere.

• -The asthenosphere is a layer of strong or hard mantle that is made of sand that flows slowly. Tectonic plates move below this layer.

• -The asthenosphere is a layer of weak or soft crust that is made of rock that slides slowly. Tectonic plates fall on top of this layer.

• -The asthenosphere is a layer of weak or soft mantle that is made of rock that flows slowly. Tectonic plates move on top of this layer.

What are the two types of crust?

(Pick two)

• Lithosphere

• Oceanic

• Tectonic Plate

• Continental

How are oceanic crust and continental crust different?

• Continental crust is thicker, but oceanic crust is denser.

• Continental crust is thinner, but oceanic crust is softer.

• Continental crust is denser, but oceanic crust is thicker.

• Continental crust is full of water, but oceanic crust is full of rock.

How are the lithosphere and the crust similar?

• They are both the innermost layers and the softest layers.

• They are both the outermost layers and the heaviest layers.

• They are both the innermost layers and the densest layers.

• They are both the outermost layers and the least dense layers.

Tags

NGSS.MS-ESS2-1

How are the lithosphere and the crust different?

• The crust is a physical layer that contains the crust AND the rigid, upper part of the mantle. The lithosphere is a compositional layer.

• The lithosphere is a physical layer that contains the crust AND the rigid, upper part of the mantle. The crust is a compositional layer.

Select the 5 physical layers of Earth in order from the outside to the inside.

• Lithosphere, Mesosphere, Asthenosphere, Outer Core, Inner Core

• Asthenosphere, Lithosphere, Inner Core, Outer Core, Mesosphere

• Lithosphere, Asthenosphere, Mesosphere, Outer Core, Inner Core

Select the 3 compositional layers of Earth in order from the outside to the inside.

• Core, Mantle, Crust

• Crust, Mantle, Core

• Mantle, Crust, Core

• Mantle, Core, Crust

How are the outer core and inner core similar?

• They are made mostly of aluminum and some silicon.

• They are made mostly of iron and some nickel.

• They are made mostly of iron and some calcium.

• They are made mostly of nickel and some iron.

Tags

NGSS.MS-PS1-1

How are the outer core and inner core different?

• The outer core is a liquid layer and the inner core is the solid, dense center.

• The outer core is a solid layer and the inner core is the liquid center.

• The outer core is a liquid layer made up of water and the inner core is the soft, rock center.