Download Protecting Resources

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Igneous- melted rock that cools and hardens
Sedimentary- forms when layers of materials
and rock particles settle on top of each other
and harden
Metamorphic- solid rock that has been
squeezed and heated to very high temps. Its
particles can take on diff. arrangements and
change properties.
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Rocky cycle- shows different ways one type
of rock can become another.
Rocks are made of minerals in many different
sizes, shapes, and colors
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Soil is made of weathered rock, decomposed
plants and animals, bacteria, and fungi
3 layers of soil: topsoil, rocks and pebbles,
and bedrock
Bedrock breaks apart into one of three types
of particles:
◦ sand- biggest grains; most space
◦ Silt- grains just large enough to see
◦ Clay- the grains too small to see; least space
between particles- holds water
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Humus- combines with sand, silt, or clay;
basis for healthy, rich soil
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Weathering is a process that makes
sediments
Examples: wind and water break pieces of
sediment off of rocks
Erosion is a process that moves sediments,
and can cause major landform changes over
time
Examples: wind and water carry sediments
from place to place
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Mountains- formed when 2 plates run into each
other
Plains
Oceans
River valleys-low area caused by flowing water
Coastlines- where ocean meets land
Canyons- formed by flowing water (erosion)
Plateaus
River Deltas- growing pile of deposited
sediment at mouth of a river (weathering &
erosion)
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Anything that people use that comes from the
natural world
◦ Examples: stone, oil, wood, water, air, animals,
plants
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Two types:
◦ Renewable resources: resources that replace
themselves naturally (plants, water, air)
◦ Nonrenewable resources: resources that we have a
limited supply of (cannot be replaced) examplefossil fuels
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Sources of energy formed from the remains
of dead plants and animals that lived millions
of years ago
Three Types:
◦ Coal, Natural Gas, Oil
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Protecting resources (plants, animals, soil,
etc.)
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Reduce- use less of resource
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Reuse- use more than once
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Recycle- turns something into something new
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Dams produce electricity, prevent floods, and
provide water for drinking and irrigation.
Wastewater treatment buildings take in dirty
water and clean it
Pumping water from underground to help
grow crops
Create/use things that take in renewable
energy resources to produce energy.
(windmills, dams, solar cells, etc.)
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Agriculture can cause erosion of topsoil
which can cause fewer nutrients for the plants
Humans build dams on rivers, which can
cause fish to die off.