Science & Research
Experiments, theories, and the building blocks of the physical world.
151 words
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A2 (5) Pro
energy
A2
/ˈɛn.əɹ.d͡ʒi/
The strength and ability to be active without getting tired.
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research
A2
/ˈrisɚtʃ/
A careful study to discover new facts or information.
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data
A2
/ˈdeɪtə/
Facts and figures collected for analysis or to draw conclusions.
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scientific
A2
/ˌsaɪənˈtɪfɪk/
Relating to science or the way science is done.
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atom
A2
/ˈætəm/
The smallest part of a chemical element that can exist.
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B1 (18) Pro
theory
B1
/ˈθɪ.ɹi/
A set of ideas that explains how or why something happens, supported by evidence.
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reaction
B1
/ɹiˈækʃən/
The way you behave or feel because of something that has happened.
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experiment
B1
/ɪkˈspɛɹ.ə.mənt/
A scientific test done to discover something or to check whether an idea is true.
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discovery
B1
/dɪsˈkʌv(.ə).ɹi/
Something that is found or learned for the first time.
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analysis
B1
/əˈnæl.ə.sɪs/
The careful study of something by examining its parts in detail.
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engineering
B1
/ˌɛn.d͡ʒɪˈnɪ(ə)ɹ.ɪŋ/
The work of using science and maths to design and build machines, structures, and systems.
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element
B1
/ˈɛləmənt/
One of the parts that together make up a whole.
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physics
B1
/ˈfɪz.ɪks/
The science that studies matter, energy, and how they affect each other.
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chemistry
B1
/ˈkɛm.ɪ.stɹi/
The science that studies what substances are made of and how they change.
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laboratory
B1
/ˈlæb(ə)ɹəˌtɔɹi/
A room or building equipped for scientific research, experiments, or analysis.
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biology
B1
/baɪˈɑ.lə.d͡ʒi/
The science that studies living things such as plants and animals.
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chemist
B1
/ˈkɛmɪst/
A scientist who studies or works with chemistry.
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organism
B1
/ɔʳˈɡan.ɪzəm/
A single living thing, such as an animal, plant, or microbe.
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nitrogen
B1
/ˈnaɪ.tɹə.d͡ʒən/
The chemical element with an atomic number of 7 and atomic weight of 14.0067. It is a colorless and odorless gas.
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calcium
B1
/ˈkæl.si.əm/
the chemical element with symbol Ca and atomic number 20, a soft, silvery, reactive alkaline-earth metal that occurs naturally only in compounds
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genetics
B1
/dʒəˈnɛtɪks/
The branch of biology that studies how characteristics are passed from parents to children.
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molecule
B1
/ˈmɑ.lɪ.kjul/
The smallest unit of a substance that still has all its chemical properties, made of two or more atoms joined together.
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geology
B1
/d͡ʒiˈɑ.lə.dʒi/
The science that studies the structure of the earth and its rocks.
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B2 (19) Pro
carbon
B2
/ˈkɑɹ.bən/
A chemical element (symbol C) found in all living things, and in forms such as graphite and diamond.
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evolution
B2
/ˌɛvəˈluʃ(ə)n/
The gradual process by which something changes and develops over time.
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uranium
B2
/ˌjuːˈɹeɪniəm/
The element with atomic number 92 and symbol U. A radioactive silvery-grey metal in the actinide series.
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potassium
B2
/pəˈtæs.i.əm/
the chemical element with symbol K and atomic number 19, a soft, silvery, highly reactive alkali metal that occurs naturally only in compounds
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silicon
B2
/ˈsɪl.ə.kən/
the chemical element with symbol Si and atomic number 14, a hard, brittle semiconductor abundant in rocks as silica and silicates and widely used in electronic devices
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sulfur
B2
/ˈsʊl.fə/
A bright yellow chemical element (symbol S) with a strong smell, used in matches, gunpowder, and many industrial products.
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relativity
B2
/ɹɛl.əˈtɪv.ɪ.ti/
(physics) The scientific theory that space and time are not fixed but depend on the observer's motion.
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enzyme
B2
/ˈɛn.zaɪm/
a protein or RNA molecule that catalyzes a biochemical reaction without being consumed by it
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magnesium
B2
/ˌmæɡˈnizi.əm/
the chemical element with atomic number 12, a light, silvery-white metal that burns with an intense white flame
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proton
B2
/ˈpɹoʊ.tɑn/
A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark.
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hydraulics
B2
/haɪˈdrɑː.lɪks/
the science and engineering of liquids in motion and their use to transmit force
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phosphorus
B2
/ˈfɑs.fɚ.əs/
A chemical element (symbol P) with an atomic number of 15, that exists in several allotropic forms.
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radium
B2
/ˈɹeɪ.di.əm/
A radioactive metal element (symbol Ra) that glows and was once used in medicine.
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forestry
B2
/ˈfɒɹ.ɪst.ɹi/
The science and work of planting and looking after forests.
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manganese
B2
/ˈmæŋɡəˌniːz/
the chemical element with atomic number 25, a hard gray metal used especially to strengthen steel and in batteries
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morphology
B2
/mɔɹˈfɑ.lə.d͡ʒi/
the branch of biology that deals with the structure of animals and plants
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experimenter
B2
/ɪkˈsper.əˌmen.tɚ/
a scientist or researcher who conducts an experiment
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interbreeding
B2
/ˌɪntɚˈbriːdɪŋ/
reproduction between animals or plants from different populations, breeds, varieties, or closely related species
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hybridism
B2
/ˈhaɪbrɪdɪzəm/
the production of hybrids by crossing different species, varieties, or breeds
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C1 (17) Pro
gravity
C1
/ˈɡɹævəti/
The natural force that pulls objects toward the earth or toward each other.
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hydrogen
C1
/ˈhaɪdɹəd͡ʒ(ə)n/
The lightest chemical element (symbol H), a colorless, odorless, highly flammable gas.
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helium
C1
/ˈhiː.li.əm/
a very light, colorless, and odorless element that is one of the six inert gasses
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genome
C1
/ˈd͡ʒiː.noʊm/
The complete set of genetic information in an organism.
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chlorine
C1
/ˈklɔːr.iːn/
the chemical element with atomic number 17, a toxic greenish-yellow halogen gas in its elemental form
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lithium
C1
/ˈlɪθ.i.əm/
the chemical element with symbol Li and atomic number 3, a soft, silvery-white, highly reactive alkali metal and the lightest metal
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iodine
C1
/ˈaɪəˌdaɪn/
the chemical element with atomic number 53, a dark halogen that forms a violet vapor when heated
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prism
C1
/ˈprɪzəm/
a transparent optical element with flat faces that refracts light, often separating it into colors
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optics
C1
/ˈɑptɪks/
the branch of physics concerned with light, vision, and the behavior of electromagnetic radiation
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stimulus
C1
/ˈstɪm.jə.ləs/
Something that encourages activity or growth, especially in the economy.
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cobalt
C1
/ˈkoʊbɔlt/
the chemical element with atomic number 27, a hard silvery-blue metal used in alloys, batteries, magnets, and pigments
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infusion
C1
/ɪnˈfjuːʒən/
the introduction of a new element, quality, or resource that changes or strengthens something
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stimuli
C1
/ˈstɪm.jʊˌlaɪ̯/
Things that cause a reaction or response in people, animals, or things (plural of stimulus)
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barium
C1
/ˈbɛriːəm/
a soft silvery metallic element of the alkali earth group
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chromium
C1
/ˈkroʊ.mi.əm/
the chemical element with atomic number 24 and symbol Cr, a hard, lustrous metal used especially in alloys and protective plating
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gallium
C1
/ˈɡæliəm/
a chemical element (symbol Ga) with an atomic number of 31; a soft bluish metal.
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einsteinium
C1
/aɪnˈstaɪni.əm/
a synthetic radioactive chemical element with atomic number 99 and symbol Es
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C2 (63) Pro
mutant
C2
/ˈmjuː.tənt/
an organism, cell, gene, or other biological entity that carries a mutation
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hypothesis
C2
[haɪˈpʰɑθəsɪs]
An idea put forward to explain something, which can then be tested.
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arsenic
C2
/ˈɑɹsənɪk/
a very poisonous metallic element that has three allotropic forms
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plutonium
C2
/pluːˈtoʊniəm/
The transuranic chemical element with atomic number 94 and symbol Pu: a silvery-gray fissile radioactive actinide metal that tarnishes when exposed to air.
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brimstone
C2
/ˈbɹɪmstoʊn/
An old name for the element sulfur.
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iridium
C2
/ɪˈɹɪd.i.əm/
a chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group.
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argon
C2
/ˈɑːr.ɡɑːn/
the chemical element with symbol Ar and atomic number 18, a colorless, odorless, largely unreactive noble gas that forms about 0.93 percent of Earth's atmosphere
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fertilization
C2
/ˌfɝːtəlɪˈzeɪʃən/
the union of male and female gametes to begin the development of a new organism
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amoeba
C2
/əˈmiː.bə/
a single-celled organism that changes shape and moves or feeds by extending pseudopodia
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fluoride
C2
/ˈflɔːr.aɪd/
a compound in which fluorine is combined with a more electropositive element or chemical group
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hermaphrodite
C2
/hɝˈmæfɹədaɪt/
Cosexual: an organism possessing both types of gonads; a flower possessing both stamens and pistils.
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thermodynamics
C2
/ˌθɜː(ɹ)moʊdaɪˈnæmɪks/
The science of the conversions between heat and other forms of energy.
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graviton
C2
/ˈɡræv.ɪˌtɑːn/
a hypothetical massless spin-2 boson that would be the quantum carrier of gravity in a quantum theory of the gravitational field
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quicksilver
C2
/ˈkwɪkˌsɪlvɚ/
the metallic element mercury, especially when seen in its mobile liquid form
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jurisprudence
C2
/ˌdʒʊr.ɪsˈpruː.dəns/
the theory or philosophy of law and the principles by which legal systems interpret and apply it
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beryllium
C2
/bəˈrɪl.i.əm/
the chemical element with symbol Be and atomic number 4, a hard, gray, low-density alkaline-earth metal valued for its stiffness and transparency to X-rays
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metallurgy
C2
/ˈmɛt.əˌlɝ.dʒi/
the science and technology of extracting metals, refining and alloying them, and controlling their properties during processing
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ism
C2
/ˈɪz.əm/
a distinctive doctrine, theory, cause, or movement, especially one named with the suffix -ism
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fluorine
C2
/ˈflɔːr.iːn/
the chemical element with symbol F and atomic number 9, whose elemental form is an extremely reactive, toxic, pale-yellow halogen gas
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thorium
C2
/ˈθɔːɹiəm/
a soft silvery-white tetravalent radioactive metallic element
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jurist
C2
/ˈdʒʊr.ɪst/
an expert or scholar in law and legal theory
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silicate
C2
/ˈsɪlɪkət/
chemistry: a salt or ester derived from a silicic acid and containing silicon and oxygen
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bismuth
C2
/ˈbɪz.məθ/
the chemical element with symbol Bi and atomic number 83, a dense, brittle, crystalline metal that is silvery white with a pink tinge
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vanadium
C2
/vəˈneɪ.di.əm/
the chemical element with symbol V and atomic number 23, a silvery transition metal used chiefly to strengthen steel and in several industrial catalysts
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C2+ (28) Pro
mendelevium
C2+
/ˌmɛn.dəˈli.vi.əm/
a synthetic radioactive metallic chemical element with atomic number 101 and symbol Md
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rutherfordium
C2+
/ˌɹʌðəɹˈfɔːɹdiəm/
a synthetic radioactive chemical element with atomic number 104 and symbol Rf
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anatomy
C2+
/əˈnætəmi/
the bodily structure of an organism, or its study
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empiric
C2+
/ɪmˈpɪrɪk/
one who relies on observation or experiment; an unqualified practitioner
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mechanics
C2+
/məˈkænɪks/
the science of motion and forces; the practical workings of something
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photoperiod
C2+
/ˌfoʊtoʊˈpɪriəd/
the duration of daily light exposure affecting an organism
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soma
C2+
/ˈsoʊmə/
the body of an organism as distinct from its germ cells or psyche
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alchemy
C2+
/ˈælkəmi/
the medieval forerunner of chemistry seeking to transmute metals into gold
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axiomatization
C2+
/ˌæksiəmətəˈzeɪʃən/
the formulation of a theory as a set of axioms from which theorems derive
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behaviorism
C2+
/bɪˈheɪvjəˌrɪzəm/
the psychological theory that behavior can be explained by conditioning
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cartography
C2+
/kɑrˈtɑɡrəfi/
the science and art of making maps
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counterpoint
C2+
/ˈkaʊntɚˌpɔɪnt/
a contrasting element set against another; combined melodic lines
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horticulture
C2+
/ˈhɔrtəˌkʌltʃɚ/
the art and science of cultivating gardens, fruits, vegetables, and flowers
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hygienics
C2+
/haɪˈdʒɛnɪks/
the science or principles of hygiene and the preservation of health
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mutualist
C2+
/ˈmjutʃuəlɪst/
an advocate of mutualism, or an organism in a mutual relationship
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physicist
C2+
/ˈfɪzɪsɪst/
a scientist who specializes in the study of physics
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physiology
C2+
/ˌfɪziˈɑlədʒi/
the branch of biology dealing with the functions of living organisms and their parts
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poetics
C2+
/poʊˈɛtɪks/
the study or theory of the principles and forms of poetry and literature
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revisionist
C2+
/rɪˈvɪʒənɪst/
one who advocates revising an accepted theory, doctrine, or history
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sac
C2+
/sæk/
a pouch or bag-like cavity in an organism, often holding fluid
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toxin
C2+
/ˈtɑksɪn/
a poisonous substance produced by a living organism
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vibratiuncle
C2+
/vaɪˈbreɪʃiʌŋkəl/
a small or faint vibration, especially in obsolete nerve-theory psychology
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infusorium
C2+
/ˌɪnfjʊˈzɔɹiəm/
a microscopic aquatic organism, especially a protozoan or unicellular alga, formerly grouped with organisms found in infusions; historical biology
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monadism
C2+
/ˈmoʊ.nædˌɪz.əm/
the metaphysical doctrine that monads are the ultimate units of reality, especially the theory developed by Leibniz
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