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earth -n. the planet we all live on; the ground or soil
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earthquake -n. a sudden, violent shaking of the earth’s surface
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east -n. the direction from which the sun rises
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4
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ecology -n. the scientific study of the environment and links
among living and material things
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economy
-n. the system by which money, industry and trade are
organized +adj.
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edge -n. the line where something ends or begins
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education -n. the act of teaching
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effect -n. the result or change caused by something (“The storm
had a serious effect on the economy.”)
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9
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effort -n. an attempt; the work necessary to do something
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10
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egg -n. the rounded object containing unborn young pro-duced
by female birds, fish or reptiles; a single cell in a female person or animal
that can develop into a baby
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electricity -n. a form of energy that flows through wires to provide heat and light, and power to machines.
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electron -n. a small part of an atom that has an electrical force.
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element -n. one of more than 100 substances known to science that
cannot be separated into other substances
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14
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embassy -n. the offices of an ambassador and his or her assistants
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15
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embryo -n. a human or animal in the earliest stages of its
development
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emergency -n. an unexpected and dangerous situation demanding quick
action – adj.
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emotion -n. a strong feeling such as love, hate, fear or sadness
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18
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enemy -n. a person opposing or hating another; a person or
people of the other side in a war
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energy -n. power used to do work, usually with machines; the
ability and willingness to be active
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engine -n. a machine that uses energy to cause movement or to do
work
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engineer -n. a person who designs engines, machines, roads, bridges
or railroads
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environment -n. all surrounding things, conditions and influences that
affect life; the natural world of land, sea, air, plants and animals
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enzyme -n. a special kind of protein; it produces changes in
other substances without being changed itself
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equipment -n. things, tools or machines needed for a purpose or
activity
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event -n. that which happens, especially something of importance
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evidence -n. material or facts that prove something; a reason for
believing
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example -n. a part that shows what the rest of a thing or group is
like
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28
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exercise -n. an activity or effort for the purpose of improving the
body or to stay in good health –v.
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29
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experience -n. something that one has done or lived through (“The
experience caused her great pain.”) v. to
live through an event, situation or condition (“She experienced great pain.”);
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30
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experiment -n. a test or trial carried out to prove if an idea is
true or false, or to discover something ; v. to test
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expert -n. a person with special knowledge or training
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extremist -n. a person with strong religious or political beliefs
who acts in an extreme or violent way
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