Transcript Back to you Alex

Natural &
Wild
Erosion &
Human
Weathering Deposition Hazards
HelpfulHarmful
Humans
Be
Resourceful
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The grinding away of rock by other
rock particles
What is abrasion?
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100
This type of weathering causes the
mineral composition of rocks to
change.
What is chemical weathering?
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200
2 causes of chemical weathering
What are water, oxidation, carbonic acid,
plant acids & acid rain?
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300
Weathering occurs fastest when the
climate is these two things.
What is hot and humid?
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400
2 ways that plants cause weathering
What is roots prying apart cracks in rocks
and producing weak acids that dissolve
some rocks?
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500
#1 agent of erosion
What is water?
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100
The process of moving weathered
rock & soil from one place to
another
What is erosion?
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200
The definition of deposition
What is laying down sediment in a new
location?
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300
Plants hold soil in place and protect
it from these 2 types of erosion.
Daily Double
What are water and wind erosion?
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400
A method farmers use to minimize
soil erosion
What is leaving dead stalks & weeds in the
group (conservation plowing) or plowing
along the curves of the land (contour
plowing)?
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500
5 natural hazards
What are avalanche/blizzard, hurricane,
tornado, flood, drought, tsunami,
earthquake, volcano, landslide, or
wildfire?
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100
An example of a catastrophic event
that would speed up erosion &
deposition
What is hurricane, tornado, flood,
drought, tsunami, landslide, or wildfire?
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200
An example of a catastrophic event
that would change Earth’s crust
What is earthquake or volcano?
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300
2 ways that human activities can
decrease the damage of natural
hazards
What are using sturdy building materials,
having a safety/evacuation plan, warning
systems, board up windows (hurricane),
conserve water (drought)?
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400
Three ways that human activities
can increase the damage caused by
natural disasters
What are farming, logging, mining,
building on coasts/floodplains or
pollution?
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500
When a drought struck the U.S. in
the 1930s, the Dust Bowl occurred
because of this human activity
What is poor plowing techniques that left
the soil exposed to the wind?
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100
The management of soil to prevent
its destruction
What is soil conservation?
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200
Besides money, a cost of cutting
down a forest to build a
neighborhood
What is disrupt the ecosystem, destroy
wildlife habitats, reduce number of
producers available to food web, reduce
number of trees to clean the air, etc. ?
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300
A benefit of cutting down a forest to
build a neighborhood
What is new homes for families & jobs for
construction workers?
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400
Three ways people can reduce their
use of natural resources
Daily Double
What are recycle, conserve water, lower
thermostat, buy recycled products,
carpool, turn out lights when leaving a
room, etc?
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500
Oil and coal are this type of
resource.
What is non-renewable?
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100
An example of an inexhaustible
resource
What are sunlight, geothermal,
hydroelectric, or wind?
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200
Fruit, livestock, fish and forests are
this type of resource.
What is renewable?
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300
The reason we should not rely on
non-renewable sources of energy
What is those energy sources can
eventually run out?
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400
A renewable resource can become
completely used up if this happens
What is the resource is used faster than it is
replaced?
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500