weathering & erosion differential weathering chemical weathering mechanical (physical)...
TRANSCRIPT
Weathering & ErosionDifferentialWeathering
Chemical Weathering
Mechanical (Physical)
Weathering
Etc EtcVocabulary
True or False
Q $100
Q $200
Q $300
Q $400
Q $500
Q $100 Q $100Q $100 Q $100
Q $200 Q $200 Q $200 Q $200
Q $300 Q $300 Q $300 Q $300
Q $400 Q $400 Q $400 Q $400
Q $500 Q $500 Q $500 Q $500
Final Jeopardy
$100 Question from H1
the average weather conditions inAn area over a long period of
time
$100 Answer from H1
Climate (Temperature)
$200 Question from H1
The height (typically measured in feet above sea level) to
which something is elevated or to which it rises
$200 Answer from H1
Elevation
$300 Question from H1
The more _______ _____ of a rock that is exposed to weathering, the faster the rock will wear down.
$300 Answer from H1
Surface Area
$400 Question from H1
Rocks that are made of ______ minerals will weather faster than rocks that are made of _______
minerals.
$400 Answer from H1
Softer, harder
$500 Question from H1
A process by which softer, less-weather resistant rock wear away and leave harder, more weather-
resistant rock is called…
$500 Answer from H1
Differential Weathering
$100 Question from H2
Rain, snow or sleet that contains a high concentration of acids (an agent of chemical weathering)
$100 Answer from H2
Acid Precipitation
$200 Question from H2
These are agents of chemical weathering (name three)
$200 Answer from H2
Water, weak acids/plant Acids, air
$300 Question from H2
What causes acid precipitation
$300 Answer from H2
The burning of fossil fuels
$400 Question from H2
a chemical reaction in which an element, such as iron, combines with oxygen to form an oxide.
This form of chemical weathering forms rust.
$400 Answer from H2
Oxidation
$500 Question from H2
Another name for living things such as algae or
fungus (which live on rocks) which produce acids that slowly break down rock.
$500 Answer from H2
Lichens
$100 Question from H3
The grinding and wearing away of rock surfaces through the mechanical actions of other
rocks or sand particles
$100 Answer from H3
Abrasion
$200 Question from H3
These are agents of Mechanical (Physical) Weathering (list at
least 4)
$200 Answer from H3
ice, wind, water, gravity, plants and animals
$300 Question from H3
An agent of mechanical weathering that causes rocks to fall (rock
slide/landslide) causing abrasion as they hit each other
$300 Answer from H3
Gravity
$400 Question from H3
When water seeps into cracks during warm weather, temperatures drop, water freezes and expands pushing
against the sides of the crack (pressure), widening the crack until
the rock breaks up/apart
$400 Answer from H3
Ice Wedging
$500 Question from H3
Describes how a rock changes after it has been in a riverbed for
a long time
$500 Answer from H3
the edges of the rock are worn away and its surface becomes smoother
$100 Question from H4
The process by which wind, water, ice or gravity transports soil and sediment from one location to
another
$100 Answer from H4
Erosion
$200 Question from H4
The process in which material/minerals are laid down
after being carried away
$200 Answer from H4
Deposition
$300 Question from H4
The process by which rock materials are broken down by the
action of physical or chemical processes
$300 Answer from H4
Weathering
$400 Question from H4
What agent of weathering can weather rock mechanically and
chemically?
$400 Answer from H4
Water
$500 Question from H4
Name four factors that affect how fast weathering happens
$500 Answer from H4
Temperature, moisture, Elevation and slope
$100 Question from H5
The roots of plants canGrow deep into cracks and cause
Mechanical weathering
$100 Answer from H5
True
$200 Question from H5
Elevation and slope can affectHow fast weathering occurs
$200 Answer from H5
True
$300 Question from H5
Rocks with very little surface area weather faster than rocks
With a lot of surface area
$300 Answer from H5
False
$400 Question from H5
Temperature is a major factorIn both chemical and mechanical
weathering
$400 Answer from H5
True
$500 Question from H5
In chemical weathering, the chemical composition of
A rock does NOT change.
$500 Answer from H5
False
Final Jeopardy
Briefly, how are caves/caverns formed underground?
Final Jeopardy Answer
Acid precipitation seeps into ground and dissolves Limestone