Show:
Rocks
Minerals
Earth's Structure
Plate Tectonics
Geology Theories
100
This type of rock is formed when magma cools and solidifies
What is igneous rock
100
This property of a mineral describes it's ability to reflect light
What is luster
100
This layer of the Earth is composed of granite
What is the continental crust
100
These are found near ridges on the ocean floor and provide evidence for sea floor spreading
What are pillow rocks
100
Change happens slow and gradually.
What is Uniformatarianism?
200
This type of rock is formed from particles cemented together
What is sedimentary rock
200
This is the characteristic powder trail left by a mineral
What is streak
200
This layer of the Earth is composed of basalt
What is the oceanic crust
200
This convergent movement of plates results in the ocean floor sinking beneath a trench and back into the mantle
What is subduction
200
Change happens suddenly and abruptly.
What is catostrophism?
300
This type of rock is formed when igneous or sedimentary rocks are altered by heat and pressure
What is metamorphic rock
300
This is a rock that contains a useful mineral
What is an ore
300
These currents occur in the middle mantle
What are convection currents
300
This type of fault is formed when plate move apart
What is a divergent plate
300
This theory states the younger layers of rock will be on top of older layers of rock.
What is superposition?
400
This type of sedimentary rock is formed from the remains of living things
What is organically formed sedimentary rock
400
This mineral is a round hollow rock lined with crystals
What is a geode
400
The Earth's magnetic field are the results of movement in this layer of the Earth (be specific)
What is the outer core
400
This German meteorologist developed the Theory of Continental Drift in the early 1900's
Who is Alfred Wegener
400
What theory states, "the key to the present is the key to the past?"
What is uniformatarianism?
500
This is a type of metamorphic rock formed when limestone is altered by heat and pressure
What is marble
500
These are the five characteristics of minerals
What are naturally occurring, inorganic, solid, crystal structure, and definite composition
500
The viscous middle mantle is also known as this
What is the aesthenosphere
500
This Canadian scientist combined Continental Drift Theory and Sea Floor Spreading into the Theory of Plate Tectonics in the 1968
Who is J. Tuzo Wilson
500
Meteor impact craters and volcanoes demonstrate this theory.
What is catastrophism?