Soil and Water Cycle Review
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Transcript of Soil and Water Cycle Review
Soil and Water Cycle
Review
Mrs. DeLaura’s 3rd Grade Class
The carrying of weathered pieces of rock by wind, water, and gravity is called
_____.
erosion
The breaking down of rock into smaller
pieces, such as sand, silt, or clay is
called ______.
weathering
Land surfaces that are not covered with
plants are more likely to _______.
lose soil through erosion
Soil is created by a process of ____.
weathering
Materials that plants need to live and
grow are ___________.
nutrients
Soil helps plants to grow by providing ____ and _____.
support and nutrients
The components of soil are
___________.
rock, clay, silt, sand, and humus
The upper surface layer of soil is called ______.
topsoil
The layer of rock underneath the topsoil is called
____.
subsoil
The layer of soil that has the most
nutrients for plants is the _____.
topsoil
The plant nutrients in soil come from
_____.
humus
The solid layer of rock beneath the subsoil and loose
rocks is called _____.
bedrock
There is a layer of loose rocks between
the ______ and ______.
topsoil and subsoil
The pieces of decayed plants and animals in soil are
called _____.
humus
The top layers of soil are produced when bedrock _______.
breaks into smaller pieces
The process of producing soil takes
many ______.
years
Tiny particles of soil the are tightly
packed, hold water well and provide
some nutrients are called _____.
clay
Small grains of worn down rock that have few nutrients and do not hold water well
are ______.
sand
Soil particles that are larger than clay,
but smaller than sand are _____.
silt
The energy source that drives the water
cycle is the ____.
sun
The three processes that are involved in the water cycle are ___, ___, and ___.
Evaporation, condensation, and
precipitation
Ponds, lakes, streams, oceans,
and underground are all places where
_____.
water is stored
The movement of water from the
ground to the air and then back to the ground is called
____.
The water cycle
The process by which liquid water is
turned to water vapor is called ____.
evaporation
The process in the water cycle by which
water vapor is changed back into
liquid water is called ____.
condensation
The collecting of water in streams,
lakes, and oceans is called _____.
accumulation
In order for water to evaporate it must be
____.
heated
In order for condensation to
occur, water vapor must be ____.
cooled
Water that falls from the sky is called
____.
precipitation
The forms of precipitation are ___,
___, ___, and ___.
rain, sleet, hail, and snow
Runoff from over-fertilized lawns and
fields, oil from parking lots, soil erosion and animal waste are all
forms of _____.
Water pollution