Minerals
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
Other Facts
100
what is the softest mineral?
talc
100
What type of igneous rock is made from lava?
extrusive
100
What are the small pieces of rock or the remains of living things that make up sedimentary rock called?
sediment
100
What forces are necessary for metamorphic rocks to form?
heat and pressure
100
What is the process in which dissolved minerals crystallize and glue particles of sediment together?
cementation
200
What is the hardest mineral?
a diamond
200
What is the size of the crystals of intrusive igneous rocks when cooled slowly?
large
200
What is the process by which sediment settles out of the water or wind carrying it?
deposition
200
What type of metamorphic rocks have parallel layers or bands?
foliated
200
What is a series of processes on Earth's surface and in the crust and mantle that slowly change rocks from one kind to another?
Rock Cycle
300
What characteristic is used to determine the color of a mineral's powder?
streak
300
What type of igneous rock is made from magma?
intrusive
300
What type of sedimentary rock is coal?
organic rock
300
How do nonfoliated rock split?
They do not split in layers.
300
What is the term used to describe how light is reflected from a mineral's surface; whether it shines like a metal or not?
luster
400
What is made when one or more minerals combine?
a rock
400
What is the extrusive igneous rock that makes up much of the ocean floor?
basalt
400
What type of sedimentary rocks are formed from a mixture of rock fragments with rounded edges?
conglomerate rock
400
Where does metamorphic rocks form?
deep underground
400
What is the process by which water, ice, wind, or gravity moves weathered rock or soil?
erosion
500
Why is a mineral considered inorganic?
it is not made from materials that once part of living things
500
What intrusive igneous rock makes up much of the continental crust?
granite
500
What sedimentary rock is made from the mineral deposits left when seas or lakes evaporate?
chemical rock
500
How do geologists classify metamorphic rocks?
by the arrangement of the grains
500
From where does the melted rock come from as it moves upward when oceanic plates move apart?
the mantle
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