Inside the Earth vocab

What is the solid rocky outer layer of Earth called?

• Asthenosphere

• Core

• Mantle

• Crust

What is magma?

• Molten rock below the crust

• Solid rock on the surface

• Solid rock below the crust

• Molten rock on the surface

What is the term for molten rock that flows onto the Earth’s surface?

• Sediment

• Magma

• Lava

• Igneous

What is the lithosphere composed of?

• Crust and upper mantle

• Outer core and inner core

• Asthenosphere and mesosphere

• Crust and outer core

How do metamorphic rocks form?

• From heat and pressure

• From layers of sediment

• From volcanic eruptions

• From cooling magma

What percentage of the Earth’s mass does the mantle make up?

• 50%

• 33%

• 66%

• 75%

How do igneous rocks form?

• From heat and pressure

• From cooling magma

• From erosion

• From compacted sediment

What does the Principle of Uniformitarianism state?

• The Earth is flat

• Older layers are above younger layers

• The core is liquid

• Geologic processes are consistent over time

What causes tectonic plates to move?

• Earthquakes

• Erosion

• Volcanic eruptions

• Convection currents in the asthenosphere

What is the mesosphere?

• Innermost layer of the mantle

• Middle layer of the atmosphere

• Outer layer of the crust

• Layer of the core