Multiple
Choice
I Know
This!
Best
Answer
The Picture Oldies but
Goodies
Says?
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What is relative dating?
Relative dating is the comparison of rock
layers with other layers in a sequence to
determine the rock’s age
What are unconformities?
Gaps in the geologic record that may
indicate episodes of crustal deformation,
erosion, and sea level differences
What are index fossils?
Fossils, used by scientist, to
define and identify
geologic periods.
What is the geologic time scale?
Because the Earth’s history is so large,
scientists use the geologic time scale to
make it more manageable and easier to
understand.
How do rocks turn into
metamorphic rocks?
Rocks go through the metamorphic process
by increased pressure and temperature.
What is weathering?
The process where water, wind, and heat
break down rock.
What creates igneous rock?
Magma cooling during the rock cycle.
Define mechanical weathering.
Mechanical weathering is the same
as physical weathering. Things like
ice, wind, water, gravity, plants,
animals, humans physically wear
away at rocks or the land.
Why is it
important to
stop beach erosion?
1) If the beaches get eroded away we will
have no more beaches.
2) Also, the erosion will start to take away
the business and homes of people who live
on or near the beach.
True or False
Increasing the surface area
increases the rate at which rocks
weather.
True
The more area exposed to the elements
the more the rock will wear down and
the quicker that process will be.
What is abrasion?
The process by which rocks rub
against each other and wear the rock
away (or where sand and silt rub
against rock to wear it away).
What is saltation?
The skipping and bouncing of small
particles in the direction the wind is
blowing.
What is uplift?
The rising of regions of Earth’s crust
to higher elevations.
What is absolute dating?
The process of determining a
specific date for an archaeological or
paleontological site or artifact.
What is deposition?
The process of dropping, or depositing,
sediment in a new location.
Describe how each type of rock
changes as it moves through the
rock cycle.
Sedimentary rocks gets weathers down.
Through gravity, the rocks gets pulled down
into the Earth through heat and pressure to
become metamorphic rocks.
Metamorphic rocks get pulled down further
in the Earth and get heated to be come
igneous rock.
Igneous rock through uplifting, get eroded
away to become sedimentary.
If a rock is buried deep inside the
earth, which geological processes
cannot change the rock?
weathering and erosion
According to the rock cycle diagram, which of the following statements is true?
a) Only sedimentary rock gets weathered and eroded.
b) Uplift can happen at any stage in the rock cycle
c) Heat and pressure create igneous rocks.
d) Metamorphic rocks are created by melting and cooling.
b
What is the geologic rock
column?
An ordered arrangement of rock layers
that is based on the relative ages of the
rocks and which the oldest rocks are the
bottom.
Heat and pressure create_______________?
a) sedimentary rock
c) metamorphic rock
b) igneous rock
d) uplift
c
What is the most common rock on
Earth’s surface? Why?
Sedimentary Rock
It’s on Earth’s surface (most other rocks are within
the Earth) and it is made up of many different
types and pieces of rocks combined.
What is chemical weathering?
Chemical weathering the chemical
breakdown and deposition of rocks by
natural processes in the environments.
List all 4 spheres of the Earth
and
Give an example of each!!
atmosphere (air), biosphere (life),
geosphere(land), and
hydrosphere(water).
How are sand dunes formed?
Would a sand dune formed 5 years
ago still be the same today? Why or
why not?
Sand dune was formed through erosion
& deposition.
No, you would not find this dune in
exactly the same position. It most likely
grew over time as the erosion moved
sand away and the wind deposited even
larger amounts of sand in the dunes.
List the four processes that change
one type of rock to the other.
weathering, pressure, melting,
cooling