Igneous Rocks Quiz

Igneous Rocks Formation

• Igneous rocks are formed from magma or lava, which is molten rock from the Earth's interior.
• Igneous rocks can be found at the Earth's surface, including volcanic regions, mountain ranges, and the ocean floor.

Plate Tectonics

• The theory that states the Earth's crust is broken up into plates is called plate tectonics.
• The massive sections of the Earth's crust are called tectonic plates.

Magma and Volcanic Activity

• Magma that reaches the surface of the Earth is called lava.
• The formation of igneous rocks is linked to volcanic activity and plate tectonics.

Tectonic Plate Movement and Igneous Rock Formation

• The process of igneous rock formation is linked to the movement of tectonic plates, particularly at diverging and converging plate boundaries.
• At diverging tectonic plate boundaries, magma rises to the surface and solidifies, forming igneous rocks.
• The type of tectonic plate movement responsible for the formation of the Mid-Atlantic Ridge is divergent motion.
• At converging plate boundaries, oceanic crust is pushed below continental crust at a subduction zone, resulting in the formation of igneous rocks.
• The convergence of tectonic plates in the Ring of Fire area leads to the formation of volcanoes and igneous rocks.

Subduction Zones

• At subduction zones, the subducting plate is subjected to increasing heat and pressure, causing it to melt and form magma.
• The process that occurs when tectonic plates bump up against each other and create a subduction zone is called subduction.
• The characteristic of oceanic crust that leads to its subduction below continental crust is its density, which is heavier than continental crust.

Test your knowledge of igneous rocks with this fun and educational quiz. Learn about the formation process, characteristics, and types of igneous rocks while having a blast.