Minerals & Rocks
What is luster of a mineral?
The amount of light it reflects from its' surface
What is an earthquake?
the shaking & trembling from the movement of plates/rocks beneath the surface
Can geologists monitor our faults?
YES but not reliable
This type of weathering physically breaks down the material into smaller pieces
physical weathering
What is abrasion?
the grinding of rock
What is the term to describe the color of a mineral's powder?
What force squeezes faults together?
compression
What is a weak spot in the crust where molten material, or magma comes to the surface?
volcano
What two factors determine the rate of weathering?
type of rock and climate
bury, burn, recycle are three ways to handle what?
wastes
Can any type of rock form into another? Why or why not?
yes, the rock cycle
What does the force tension do to the plates beneath the earth's surface?
What is a hot spot?
magma from deep within the mantle melts through the crust
hazardous wastes
What major agent or erosion shaped Earth's surface?
water
What are the three types of rocks and describe how each is formed
Igneous- lava
Metamorphic- magma in the mantle
Sedimentary- sediment
What is a strike-slip fault?
a fault where two plates slide past each other in opposite directions
Where does the magma of a volcano collect?
the magma chamber
What is the difference between kinetic and potential energy?
K- energy being used
P- energy being stored to use later
What is the difference between valley and continental glaciers?
V- long, narrow, up high in mountains
C- spreads over a large area, on the surface
What is the difference between a fracture break and a cleavage break in a mineral?
C - Clean, straight cut
F- rough, jagged cut
Describe a reverse fault and what can form?
faults are moving in opposite directions, can create cliffs, etc.
Dormant- can erupt but not currently
Active- erupting right now or is going to
Extinct- very unlikely to ever erupt
What is the difference between absolute and relative age of rocks?
A- the exact age of the rock
R- rocks age compared to other rocks
Metal, plastic, paper, and wood are examples of things that can be what?
RECYCLED!