Earth's Interior Weekly Quiz#1

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

• outer core

• asthenosphere

• inner core

• crust

The Earth is divided into different layers based on various physical properties. Which layer is a hot, thick layer where convection occurs?

• crust

• inner core

• outer core

• mantle

Which of the following statements describe the pressure from one layer to the next?

• Pressure increases as the weight of the layers above increases.

• Pressure increases with depth in the Earth, but it only applies to the mantle.

• Pressure between layers remains constant regardless of depth or material composition.

• Pressure decreases as you go deeper into the Earth, because the weight of the layers above becomes less significant.

Which layer heats the material in the mantle to form a convection current?

• crust

• core

• lithosphere

• mantle

The Earth is divided into different layers based on various physical properties. Which layer is a thin, rigid outermost layer that we live on?

• Crust

• Inner core

• Outer core

• Mantle

Which of the following statements accurately describes a convection current?

• Heat is transferred through direct contact between the core and the crust.

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

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

• Convection currents can only occur in solids, as they require rigid structures to transfer heat.

Metamorphic rock most often forms from sedimentary rock. Which of the following would be needed for this to happen?

• Heat and pressure

• Melting

• Erosion and deposition

• Weathering

Granite is a sturdy rock used for countertops. It forms from slowly cooling magma. What type of rock is granite?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

Molten rock that is inside the Earth is called ________, but molten rock that erupts onto the Earth’s surface is called _________.

• magma/lava

• lava/magma

• rock/stone

• stone/rock

Which type of rock is formed from particles of other rocks that are deposited in layers and compacted and cemented together?

• Igneous rock

• Sedimentary rock

• Metamorphic rock