Definitions
Test = Find mass per unit volume
What is density?
The property of splitting easily along flat surfaces
What is cleavage?
Volcanic belts form along ______
What are Earth's plates?
Rock used for tools and building materials
What is an igneous rock?
High elevation, high relief
What are mountains?
The way light reflects off a mineral
What is luster?
Two ways a mineral forms
What is magma cooling/lava hardening and a solution evaporating?
An area where material from deep within Earth's mantle rises to the crust and melts to form magma
What is a hotspot?
Process that physically breaks down rocks into smaller pieces
What is mechanical weathering?
Two main seas in the world
What are the Mediterranean and the Red Sea?
The breaking down of rock
What is weathering?
Mineral with a streak of white and a hardness of 7
What is quartz?
True or False: Volcanos can form underwater? Why or why not?
What is true, because lava pours out of cracks in the ocean floor and cools, creating new mountains and volcanoes?
The part of a rock that weathering first acts on
What are sharp and jagged edges?
High elevation, low relief
What are plateaus?
Intrusive crystal size
What is coarse?
Commonly called natural or volcanic glass
What is obsidian?
The spread of lava as it pours out of a volcano's vent
What is lava flow?
The practice of plowing fields along the curves of a slope
What is contour plowing?
A large island off the coast of Africa
What is Madagascar?
All continents were once joined together but have since drifted apart
What is Wegener's hypothesis, or the theory of continental drift?
Test = Observe number and angle of crystal faces
What is crystal structure?
Definition of pyroclastic flow
What is a mixture of hot gases, ash, cinders, and bombs that flow down the sides of a volcano when it erupts explosively?
Anything in the environment that humans use
What are natural resources?
Three plains in the US
What are the Interior, Atlantic Coastal, and Piedmont Plains?