Geology Crossword

A naturally occurring, inorganic solid substance having a definite chemical composition and characteristic crystalline structure, color, and hardness.
A diverse group of free floating organisms that live in large bodies of water. They cannot swim against a current and they provide a crucial source of food to many fish and whales.
A large, viscious part of the earth, which lies above the core and below the crust.
A scientist who studies the origin, structure, and composition of Earth.
Magma that has reached the surface of the Earth.
Hot liquid crystal within the earths crust.
The region of extensive volcanic and earthquake activity ringing most of the Pacific Ocean, where several tectonic plated border one another.
A fluid mass of hot, dry dust, ash, and larger volcanic debris caused by a flow of hot gases that may travel from a volcanic vent at a high speed.
A massive gently sloping volcano, with a flattened dome, built by flows of erupting lava.
A supercontinent.
A cone-shaped volcano, formed by the accumulation of erupted cinders.
The mineral that we know as salt.
A common igneous rock made of quartz, feldspar and mica.
One of the rarest and hardest, carbon based minerals
One of the substances that constitute all physical matter - wind, air, fire or water, or a natural environment.
A mixture of minerals.
The neverending process by which rock material recycles itself.
A sniny smooth black igneous rock.
The scientific study of our ever changing Earth.