1
What's the difference between magma and lava?
Both are molten rock, lava is above the Earth's surface, magma is beneath the surface.
What's your new teacher's name?
Mr. Max!
What is a "Rock Cycle"?
The set of natural processes that form, change, breakdown, and re-form rocks
What mineral is used to make glass?
Quartz
True or false,
Rocks can have no minerals in them.
True
Name 4 different uses of rocks
Cement, pavement, statues, buildings
How can minerals be used in art?
What's an ore?
A rock that contains enough of a valuable mineral to be mined for profit
True or false?
Rocks can have more than 2 different type of minerals in them
True
What are sedimentary rocks made out of?
Pieces of older rocks, plants and other loose material pressed or cemented together
What's the difference between surface mining and deep mining?
Surface mining is retrieving minerals from the surface of the Earth but deep mining is retrieving from deep below the Earth's surface
What's unique about obsidian and coal?
They are both rocks that consist no minerals
How is graphite formed?
High temperatures cause carbon to change composition
What are the three types of rocks?
Sedimentary
Metamorphic
How are raw minerals prepared for jewelry?
They are rough to begin with, so they are shaped and polished
____ percentage of the Earth's crust is made from sedimentary rock
5%
How long does it usually take for rocks to change?
Thousand to millions of years
What is strip mining and open-pit mining?
Mining the surface of the Earth to obtain minerals
but rocks do not have crystal structure and definite chemical makeup.
Name 3 reasons discussed in class, why rocks are useful
They're beautiful, strong so they last long, and valuable
Name five different ways that minerals form in nature
Water evaporates
Hot water cools
Molten rock cools
Heat and pressure cause change
Organisms produce new material
Water evaporates
Hot water cools
Water evaporates:
Water has many substances (like salt) dissolved in it, which becomes solid when only water turns to gas
Hot water cools:
Minerals dissolved in hot water becomes solid when water cools
How can a metamorphic rock change to an igneous rock?
____ percentage of the Earth's crust is made from metamorphic and igneous rock
95%
How can a igneous rock turn to a metamorphic rock?
The igneous rock experiences heat and pressure, and changes to a metamorphic rock