What is igneous rock

This type of rock is formed when magma cools and solidifies

What is luster

This property of a mineral describes it's ability to reflect light

What is the continental crust

This layer of the Earth is composed of granite

What are pillow rocks

These are found near ridges on the ocean floor and provide evidence for sea floor spreading

What is Uniformatarianism?

Change happens slow and gradually.

What is sedimentary rock

This type of rock is formed from particles cemented together

What is streak

This is the characteristic powder trail left by a mineral

What is the oceanic crust

This layer of the Earth is composed of basalt

What is subduction

This convergent movement of plates results in the ocean floor sinking beneath a trench and back into the mantle

What is catostrophism?

Change happens suddenly and abruptly.

What is metamorphic rock

This type of rock is formed when igneous or sedimentary rocks are altered by heat and pressure

What is an ore

This is a rock that contains a useful mineral

What are convection currents

These currents occur in the middle mantle

What is a divergent plate

This type of fault is formed when plate move apart

What is superposition?

This theory states the younger layers of rock will be on top of older layers of rock.

What is organically formed sedimentary rock

This type of sedimentary rock is formed from the remains of living things

What is a geode

This mineral is a round hollow rock lined with crystals

What is the outer core

The Earth's magnetic field are the results of movement in this layer of the Earth (be specific)

Who is Alfred Wegener

This German meteorologist developed the Theory of Continental Drift in the early 1900's

What is uniformatarianism?

What theory states, "the key to the present is the key to the past?"

What is marble

This is a type of metamorphic rock formed when limestone is altered by heat and pressure

What are naturally occurring, inorganic, solid, crystal structure, and definite composition

These are the five characteristics of minerals

What is the aesthenosphere

The viscous middle mantle is also known as this

Who is J. Tuzo Wilson

This Canadian scientist combined Continental Drift Theory and Sea Floor Spreading into the Theory of Plate Tectonics in the 1968

What is catastrophism?

Meteor impact craters and volcanoes demonstrate this theory.