Earth Layers

The four "spheres" of the earth are the Atmosphere, Biosphere, Hydrosphere, and Lithosphere. What is the one element that all of these spheres have in common?

• They all contain Oxygen

• They all contain Calcium

• They all contain Helium

• They all contain Phosphorus

The picture below shows a rock of gneiss, which has observable layers and formed deep underground due to heat and pressure. What type of rock is gneiss?

• Foliated metamorphic rock

• Intrusive igneous rock

• Chemical sedimentary rock

• Clastic sedimentary rock

In the earth’s layers, why is the outer core in the state of a liquid and the inner core in the state of a solid?

• The temperature of the core will not allow either part to be solid.

• The outer core is hotter than the inner core which makes the material liquid.

• The composition of the outer layer is made up of material that has a lower melting point.

• the pressure applied to the inner core causes it to be solid even though it is hotter than the outer core.

Tags

NGSS.HS-ESS2-1

On the west coast of Africa, a dense oceanic plate is colliding with a continental plate. How will Earth’s surface most likely change as a result of this collision?

• As the two crusts slide past each other, rivers or streams may be changed.

• Mountains will form on the continental crust due to the pressure of the oceanic crust.

• The oceanic crust will push the continental crust so that a separation will occur between the two crusts.

• magma will be pushed through openings in the surface as the oceanic crust pushes under the continental crust.

Tags

NGSS.MS-ESS2-2

When making a model of the layers of the Earth, what would you use to represent the inner core?

• clay

• jello

• marble

• syrup

How does the model above represent the process of convection?

• Less dense, cooler magma rises to the surface, and denser hot magma sinks.

• less dense, hot magma rises to the surface, and dense cooler magma sinks.

• Denser, hot magma rises to the surface, and the less dense, cooler magma sinks.

• Denser, hot magma sinks to the mantle, and the less dense, cooler magma rises.

What process causes the tectonic plates to move?

• conduction in the inner core

• conduction in the mantle

• convection in the inner core

• convection in the mantle

Tags

NGSS.MS-ESS2-3

Which of the Earth's layers is the hottest and densest?

• A. Inner Core

• B. Outer Core

• C. Mantle

• D. Crust (Oceanic + Continental)

Look at the image below. Using the image, how can you explain the Earth's layers to someone? (Hint: There are multiple answers)

• You can explain that the Earth is made up of 4 layers, each having distinctive characteristics.

• You can explain that the Lithosphere and Asthenosphere are the two main layers of the Earth.

• You can explain that the Earth is made up of the Crust, Mantle, Outer Core, and Inner Core.

• You can explain that water caused the formation of Earth's 7 layers.

What are the three distinctive layers of the mantle?

• Oceanic Crust, Continental Crust, Volcanic Crust

• Lithosphere, Asthenosphere, Mesosphere

• Upper mantle, Middle mantle, Lower mantle

• Crust, Mantle, Core