Earth Layers Spheres Rock Cycle

This layer contains the upper mantle and the crust.

• Mesosphere
• Asthenosphere
• Lithosphere
• Core

Which layer is considered the thinnest layer?

• Mesosphere
• Core
• Mantle
• Crust

Some students use an apple to represent the Earth. What is the best reason to use an apple for this comparison?

• The skin of an apple is very thin, and the crust of the Earth is very thin.

• The flesh of an apple is made of the same material all the way through, and the interior of the Earth is the same all the way through.

• The seeds of the apple are very light in comparison to the rest of the apple, and the core of the Earth is also made of very light matter.

• The stem of the apple comes from the core and the North Pole comes from the Earth's core.

Which statement lists the layers in the correct order from the center of Earth to the outermost layer of Earth?

• Inner Core, Outer Core, Mantle, Crust

• Inner Core, Outer Core, Crust, Mantle

• Outer Core, Inner Core, Mantle, Crust

• Outer Core, Inner Core, Crust, Mantle

To learn about the temperature of the mantle, which is a scientist MOST likely to study?

• characteristics of the ocean floor

• volcanoes

• the fossil record

• the movement of tectonic plates

Which of these best describes the relationship between the inner core, outer core, mantle, crust, asthenosphere, and lithosphere?

• The coolest layers are farthest from the core.

• The lease dense layers are closest to the core.

• The layers with the highest concentration of metals are closest to the crust.

• The layers that remain in a molten state are closest to the crust.

Which of the following shows where the lithosphere, mantle, and core would be labeled on a model of Earth's layers?

• 
• 
• 
• 

Marble, a common metamorphic rock is formed from the sedimentary rock limestone. Marble is commonly used in architecture and sculpture. Many famous buildings are made of marble, including the Washington Monument.

What processes occur in the formation of marble?

• Limestone is weathered, eroded, cemented, and compacted.

• Limeston is buried deep in the Earth and undergoes long periods of extreme heat and pressure.

• Limestone is melted, cooled, and hardened.

• Limestone is washed away by running water, fossilized, and buried deep underground in layers.

The rock cycle is a continual process by which rocks can be changed into different types of rock. What type of rock experiences compaction and cementation?

• Metamorphic and igneous rock experiences compaction and cementation.

• Metamorphic rock experiences compaction and cementation.

• Igneous rock experiences compaction and cementation.

• Sedimentary rock experiences compaction and cementation.

Many mountains in Western United States were formed by volcanic activity. Over time, the movement of water changed the form of some of the rocks originally created when the magma hardened. The changing of the volcanic rock by water is the process of...

• erosion

• sedimentation

• metamorphosis

• compaction