Mi-STAR Volcanoes Lesson 3 Quiz VOCAB

Eruption

• The release of material from a volcano like lava and gases, often explosive.

• A sudden increase in temperature in the atmosphere.

• A type of earthquake caused by tectonic plate movement.

• The process of water vapor turning into liquid water.

Crystallization

• The process of forming a solid from a gas.

• The formation of a crystal from a liquid, often during cooling.

• The breaking down of a solid into smaller particles.

• The mixing of two liquids to form a solution.

Caldera

• A small volcanic crater formed by minor eruptions.

• A large, wide volcanic crater, formed by the collapse of the volcano summit as the result of a major eruption.

• A type of lava flow that creates a shield volcano.

• A volcanic vent that emits gas and ash without lava.

Divergent Boundary

• A tectonic region where a continental or oceanic plate is splitting apart and new plate material is created.

• A location where two tectonic plates collide and one is forced beneath the other.

• An area where tectonic plates slide past each other without creating or destroying crust.

• A region where tectonic plates are stationary and do not interact with each other.

Molten

• A property of a substance meaning liquefied by heat.

• A term used to describe a solid state of matter.

• A process of freezing a liquid into a solid.

• A chemical reaction that produces gas.

Continental Plate

• A tectonic plate made up of light rocks that forms the continents.

• A type of oceanic plate that is denser than continental plates.

• A tectonic plate that is primarily composed of heavy metals.

• A plate that does not interact with other tectonic plates.

Crystal

• A type of liquid that has no fixed shape.

• A special kind of solid which has a regular shape, often with shiny surfaces.

• A gas that can be compressed easily.

• A mixture of different substances.

Stratovolcano

• A type of volcano characterized by a broad, gently sloping cone.

• A steep-sided, often cone-shaped volcano. Formed by layers of ash, relatively sticky lava and other eruption products.

• A volcano that primarily erupts lava flows and has a dome shape.

• A volcano that is formed by the accumulation of volcanic ash and has a flat top.

Mantle

• The outermost layer of the Earth, composed of solid rock.

• The thicker layer of molten and semi-solid, very hot material under the crust.

• A layer of gas surrounding the Earth.

• The layer of liquid iron and nickel at the center of the Earth.

Lava

• Molten liquid rock material that comes out of a volcano and forms rocks.

• Solid rock that is formed from cooled lava.

• A type of gas released during a volcanic eruption.

• Water that is heated by magma beneath the Earth's surface.