Transcript Sentence - Cloudfront.net

Vocabulary Words for
Chapter 4 / Section 1
Chapter 4 / Section 2
Natural Resources
Rock and Mineral Resources
(1) Natural Resource
Sentence:
Many countries around the world are rich in natural resources.
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Context Clues:
Countries; rich
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Natural Resource: [noun] Any natural materials
used by humans. Most are used to make people’s
lives easier and more comfortable. (page 128)
Synonyms:
Air, soil, fresh water, petroleum, rocks, minerals,
forests, and wildlife
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Antonyms:
None.
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(2) Renewable Resource
Sentence:
Though renewable resources can be replaced, many are
in danger of running out.
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Context Clues:
Replaced; running out
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Renewable Resource: [noun] A natural resource
that can be replaced at the same rate at which the
resource is used. However, it can be used too
quickly. (page 129)
Synonyms:
Trees; fresh water
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Antonyms:
Nonrenewable resource
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(3) Nonrenewable Resource
Sentence:
Nonrenewable resources cannot be easily replaced
because production takes too long.
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Context Clues:
Cannot be replaced; too long
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Nonrenewable Resource: [noun] A resource that
forms at a rate [thousands of years] much slower
than the rate at which it is used. When it runs out,
we will have to find another resource. (page 129)
Synonyms:
Petroleum; natural gas; fossil fuels
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Antonyms:
Renewable Resource
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(4) Recycle
Sentence:
Recycling of aluminum cans saves energy, because
less energy is used in recycling aluminum than in
making new aluminum.
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Context Clues:
Aluminum; less energy
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Recycle: [verb] The process of recovering valuable or
useful materials from waste or scrap; recycling reduces
the amount of natural resources that must be obtained
from Earth and conserves energy. (page 131)
Synonyms:
Reduce; reuse [newspaper, glass, aluminum cans,
plastic, cardboard boxes]
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Antonyms:
Waste
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(5) Mineral
Sentence:
Discovering minerals in
the soil can make
someone very
wealthy.
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Context Clues:
Soil; wealthy
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Mineral: [noun] A naturally formed, inorganic (not
formed by or from living things) solid. Minerals
have a steady chemical composition and have
crystal structures. (page 132)
Synonyms:
Crystal (copper, iron, diamond, gold, platinum,
aluminum)
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Antonyms:
None.
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(6) Rock
Sentence:
Shorelines are usually
covered with rocks.
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Context Clues:
Shoreline
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Rock: [noun] Natural material that makes up most
of the solid part of Earth’s surface; a rock may be
made of minerals and/or nonmineral materials (i.e.
coal). (page 132)
Synonyms:
None.
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Antonyms:
None.
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(7) Metal
Sentence:
Steel is a metal that is
used a lot in building
and manufacturing.
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Context Clues:
Steel
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Metal: [noun] Some minerals or products obtained
from minerals; usually hard, shiny substances that
can be melted, shaped, and cut to make things.
Good conductors of heat and electricity.(page 136)
Synonyms:
None.
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Antonyms:
Nonmetal
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(8) Nonmetal
Sentence:
Nonmetallic
substances, such
as cement and
sand, are also used
to construct large
buildings.
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Context Clues:
Cement; sand
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Nonmetal: [noun] Some minerals or products
obtained from minerals; usually shiny or dull
surfaces. Good insulators of heat and electricity.
(page 137)
Synonyms:
None.
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Antonyms:
Metal
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