Rocks and Minerals Jeopardy

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Transcript Rocks and Minerals Jeopardy

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What is an
element?
A substance
composed of a single
kind of atom.
What is a
compound?
Two or more
elements combined
so that the elements
no longer have
distinct properties.
Name the scale that
ranks ten minerals
from softest to
hardest.
Mohs hardness
scale.
What 4 questions
are used to
determine if
something is a
mineral?
1. Naturally occurring
2. Inorganic
3. Solid
4. Crystal structure
In a streak test, what is the streak?
Color of the mineral’s powder.
How a mineral reflects
light from its surface is
called _______.
Luster
What is the formula for
density?
D= mass/volume
Compare and contrast cleavage and
fracture.
Cleavage refers to when a mineral
splits easily along a flat surface.
Fracture describes how a mineral
looks when it breaks apart in an
irregular way.
What is molten
material from the
mantle that hardens to
form rock.
magma
Define lava.
Magma that reaches
the surface.
What are the 7 properties that we use
to determine which mineral is
which?
1. Color
2. Streak
3. Luster
4. Density
5. Hardness
6. Special Properties
7. Cleavage and fracture
The size, shape, and pattern of
the rock’s grains is
called_______.
Texture
What are the 2 categories of
metamorphic rocks?
Folliated
Non-folliated
What are the three groups into which
geologists classify rocks?
Igneous
metamorphic
sedimentary
Name and describe the two types of
igneous rock.
Extrusive- igneous rock formed
from lava that erupted onto
Earth’s surface.
Intrusive- igneous rock that
formed when magma hardened
beneath Earth’s surface.
What is the most abundant intrusive
rock that is in the part of the crust
that makes up the continents?
granite
What is the most common type of
extrusive rock?
basalt
What is the difference between
composition and texture?
Composition is the
minerals that make up the
rock.
Texture is the arrangement,
size and shape of the
minerals.
What is the
difference between
coarse grained and
fine grained?
Coarse- grains are large and
easy to see
Fine- grains are too small and
can only be seen with a
microscope.
Make an inference and
then an observation.
Good Job!
What are the three types of
sedimentary rocks? Give and
example of each
Clastic- shale, sandstone,
conglomerate and breccia
Organic- coal and limestone
Chemical-limestone and rock
salt.
Explain what causes an igneous rock
to have a fine-grained or coarsegrained texture?
How fast they cool.
Rapid cooling=fine grained
Slow cooling=coarse grained
What are small solid pieces of
material that come from rocks or
living things?
sediments
List and explain the processes that
change sediment to sedimentary
rock.
1.
Weathering water or wind loosen away fragments of
rock
2. Erosion- the carrying away of sediments.
3. Deposition- process by which sediment settles out
of the water or wind carrying it.
4. Compaction- process that presses sediments
together.
5. Cementation- process by which dissolved minerals
crystallize and glue particles of sediment together.
How are metamorphic rocks
formed?
Sedimentary
Rock Exposed
Extreme Heat
&pressure!