Transcript Ch. 2 ECS Power Point Review

Soil
My name
is not Dirt
Honey
Dippers
& things
Moving
Pictures
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a type of frost action
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What is ice wedging ?
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type of chemical weathering causes
a karst landscape
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What is acids in groundwater ?
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Process by which softer, less
weather-resistant rocks wear away
and leave harder, more weatherresistant rocks behind is called
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What is differential
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weathering?
How do lichens slowly break down
a rock
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What is by
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chemical weathering ?
What is
the arrangement of
soil particles called??
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What is soil
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structure
Organic material formed in
soil from the decayed
remains of plants and
animals called
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What is humus ?
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removal from soil of substances
that can be dissolved in water is
called
Double points
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What is leaching. ?
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process of changing one steep field
into a series of smaller, flatter fields
is called
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What is terracing. ?
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Ice, wind, water, gravity,
plants, and animals are all
agents of…..
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What is
mechanical
weathering?
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The soil
conservation
technique helps
prevent erosion of
sloping hills by heavy
rains
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What is contour
plowing ?
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Mechanical weathering occurs
at a greater rate in climates
that are
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What are cold
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and wet ?
What are three benefits of soil?
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What are:
1. provides minerals & nutrients to plants
2. provides a home to animals & bugs
3. allows water storage for plants
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Chemical weathering is
most rapid in areas that
are?
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What are warm
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and wet. ?
Describe how ice, water,
wind, gravity, plants, and
animals cause mechanical
weathering ?
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What Describe ice wedging, rocks
tumbling down slopes, plants (roots)
growing into rocks, animals digging
(undermining) ?
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Explain how the composition
of rocks affects the rate of
weathering
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What might be differential weathering
(define), & explain why intrusive
igneous rock holds up better than
extrusive igneous rock?
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What is the source of soil ?
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What are:
formed from rocks and decaying plants
and animals
Different-sized mineral particles, such as
sand, silt (A sedimentary material
consisting of very fine particles
intermediate in size between sand and
clay-stone dust-composed mainly of
quartz and feldspar ), and clay, give soil
its texture ?
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Describe methods of
preventing soil damage &
loss
Double points
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What are
-overuse
-No till
-Contour
-Terracing
-Cover Crops
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ability of soil to hold
and supply nutrients is
called
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What is
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fertility ?
Way to keep soil
fertile by protecting it
from erosion is called .
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What is soil
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conservation
Rocks are ground and
worn away by rocks and
sand, it is called
Double points
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What is abrasion ?
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Gardeners want
a layer of rich
_______?
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What is topsoil ?
highest concentration of organic matter and
microorganisms, and is where most of the Earth's
biological soil activity occurs.
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Telephone posts in the desert are
often worn thin by
_____________________ ?
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What is
abrasion ?
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When rocks break down because of
chemical reactions, it is called ?
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What is
chemical
weathering?
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Series of layers in which soil
forms are called
____________________. ?
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What is
PowerPoint
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horizons ?
Describe how a rock’s
surface area affects the
rate of weathering
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What are
If you can take one object & increase
the surface area of it by breaking it
up into smaller pieces then it will
weather & “go way” faster
pie
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