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Science & tech: 320 English words in 29 topics

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The Future Of Energy Storage Beyond Lithium Ion

battery

noun

As these videos use it

a device that produces electricity from chemicals, used to power things such as phones and torches

Heard 938 times in 127 videos

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All 320 words, by topic

Tap any word to hear it and play its moments. The topics run from devices and the internet, with words like battery, to coding, AI and deep space, with words like gravity and planet.

Devices

12 words · 01/29
  1. phonenounelectronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into soundsin 435 videos
  2. smartphonenouna mobile phone that also works like a small computer, with apps and internetin 38 videos
  3. laptopnouna small computer you can carry and use on your kneesin 69 videos
  4. tabletnouna flat, portable computer with a touch screenin 40 videos
  5. screennounthe display that is electronically created on the surface of the large end of a cathode-ray tubein 259 videos
  6. batterynouna device that produces electricity from chemicals, used to power things such as phones and torchesin 127 videos
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  1. chargernouna device for charging or recharging batteriesin 15 videos
  2. cameranounequipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other)in 408 videos
  3. headphonesnouna pair of small speakers you wear over or in your earsin 36 videos
  4. microphonenouna device that picks up sound so it can be recorded or made louderin 43 videos
  5. devicenounan instrumentality invented for a particular purposein 196 videos
  6. signalnounan electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comesin 199 videos

Internet

12 words · 02/29
  1. internetnounthe global network that links computers and phonesin 233 videos
  2. onlineadjectiveconnected to a computer network or accessible by computerin 277 videos
  3. websitenouna set of pages on the internet that belong to one person, group or businessin 198 videos
  4. appnouna piece of software you download, for example on a phonein 181 videos
  5. emailnouna way of sending written messages from one computer or phone to another over the internetin 136 videos
  6. downloadverbcopy files or apps from the internet onto your devicein 86 videos
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  1. uploadverbsend a file from your device to a website or the internetin 58 videos
  2. social mediaphrasewebsites and apps where people share posts, photos and messagesin 148 videos
  3. wifinouna way of connecting devices to the internet without wiresin 38 videos
  4. browsernouna program used to view HTML documentsin 24 videos
  5. search enginephrasea website, such as Google, that finds pages on the internet for the words you typein 4 videos

Computers

12 words · 03/29
  1. computernouna machine for performing calculations automaticallyin 316 videos
  2. keyboardnoundevice consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the likein 38 videos
  3. softwarenounthe instructions and apps that make a computer workin 114 videos
  4. hardwarenounin computing, the physical parts of a computer, such as the screen, keyboard and chipsin 92 videos
  5. installverbset up for usein 95 videos
  6. updatenounmodernise or bring up to datein 175 videos
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  1. memorynounthe power of retaining and recalling past experiencein 249 videos
  2. storagenounin computing, keeping information in a computer's memory or on a diskin 93 videos
  3. hard drivephrasethe part of a computer that stores files and datain 27 videos
  4. processornounin computing, the main chip that does most of a computer's workin 40 videos
  5. networknounan interconnected system of things or peoplein 210 videos
  6. virtual realitynouna computer-made world you can see and move around in, often using a headsetin 24 videos

Online safety

10 words · 04/29
  1. passwordnouna secret set of letters or numbers you use to log inin 24 videos
  2. accountnouna formal contractual relationship established to provide for regular banking or brokerage or business servicesin 258 videos
  3. securitynounsteps taken to protect people or places from theft, spying or attackin 201 videos
  4. privacynounthe quality of being secluded from the presence or view of othersin 60 videos
  5. personal dataphrasefacts about a person, such as name, address or health, that can identify themin 9 videos
  6. scamnouna fraudulent business schemein 41 videos
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  1. hackernouna programmer who breaks into computer systems in order to steal or change or destroy information as a form of cyber-terrorismin 13 videos
  2. spamnoununwanted e-mail (usually of a commercial nature sent out in bulk)in 18 videos
  3. malwarenounharmful software made to damage a computer or steal datain 5 videos
  4. encryptionnounturning data into a secret code so only the right people can read itin 9 videos

Science basics

11 words · 05/29
  1. sciencenouna particular branch of scientific knowledgein 582 videos
  2. technologynounthe practical application of science to commerce or industryin 393 videos
  3. scientistnounan expert who studies the natural world through tests and experimentsin 405 videos
  4. scientificadjectiveof or relating to the practice of sciencein 205 videos
  5. researchnounsystematic investigation to establish factsin 408 videos
  6. experimentnounthe act of conducting a controlled test or investigationin 303 videos
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  1. laboratorynouna workplace for the conduct of scientific researchin 210 videos
  2. microscopenouna tool that makes very small things look much biggerin 29 videos
  3. discoverynounsomething that is discoveredin 177 videos
  4. theorynounan idea that would explain certain facts if true, but is not yet provedin 351 videos
  5. evidencenounyour basis for belief or disbelief; knowledge on which to base beliefin 338 videos

Measuring

11 words · 06/29
  1. measureverbdetermine the measurements of something or somebody, take measurements ofin 332 videos
  2. measurementnounthe act of finding the size or amount of something, or the number foundin 105 videos
  3. lengthnounhow long something is from one end to the otherin 199 videos
  4. widthnounthe distance from one side of something to the otherin 51 videos
  5. heightnounthe vertical dimension of extension; distance from the base of something to the topin 175 videos
  6. distancenounthe property created by the space between two objects or pointsin 283 videos
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  1. weightnounthe vertical force exerted by a mass as a result of gravityin 305 videos
  2. volumenounthe amount of 3-dimensional space occupied by an objectin 180 videos
  3. temperaturenounthe degree of hotness or coldness of a body or environment (corresponding to its molecular activity)in 396 videos
  4. metrenounthe basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards)in 200 videos
  5. kilogramnouna unit of weight equal to 1,000 grams, about 2.2 poundsin 69 videos

Materials

12 words · 07/29
  1. materialnounthe tangible substance that goes into the makeup of a physical objectin 352 videos
  2. metalnouna hard, usually shiny material such as iron or gold that carries heat and electricity wellin 196 videos
  3. plasticnouna man-made material that can be shaped when soft and is used to make many thingsin 143 videos
  4. glassnouna brittle transparent solid with irregular atomic structurein 259 videos
  5. steelnouna strong metal made of iron mixed with a little carbon, widely used in buildingin 105 videos
  6. ironnouna heavy, magnetic metal that rusts easily, used to make steel and tools, and needed by your bloodin 121 videos
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  1. aluminiumnouna light, silver-white metal used for cans, foil and car partsin 57 videos
  2. coppernouna soft reddish-brown metal that carries electricity and heat well, used in wires and pipesin 39 videos
  3. solidnounthe state of a substance that keeps its own shape and size, unlike a liquid or a gasin 204 videos
  4. liquidnounfluid matter having no fixed shape but a fixed volumein 170 videos
  5. gasnounthe state of a substance, like air, that has no fixed shape and spreads to fill any spacein 257 videos
  6. densitynounthe amount per unit sizein 109 videos

Energy

12 words · 08/29
  1. energynounin science, the ability to do work, such as making things move or heat upin 553 videos
  2. powernounin physics, how fast work is done or energy is used, measured in wattsin 747 videos
  3. heatnouna form of energy that is transferred by a difference in temperaturein 409 videos
  4. electricitynounenergy made available by the flow of electric charge through a conductorin 97 videos
  5. fuelnouna substance that can be consumed to produce energyin 210 videos
  6. petrolnounthe fuel used in most car engines (British; American English says gas)in 30 videos
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  1. fossil fuelphrasecoal, oil or gas, formed underground from the remains of ancient plants and animalsin 22 videos
  2. emissionnouna substance that is emitted or releasedin 51 videos
  3. solar panelphrasea flat board that turns sunlight into electricityin 26 videos
  4. renewable energyphrasepower from sources that do not run out, such as sun, wind and waterin 8 videos
  5. nuclear powerphraseelectricity made by splitting atoms in a reactorin 17 videos
  6. power stationphrasea large plant where electricity is madein 29 videos

Earth and climate

12 words · 09/29
  1. weathernounthe atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitationin 272 videos
  2. climatenounthe weather in some location averaged over some long period of timein 196 videos
  3. climate changephraselong-term changes in the earth's weather, mostly caused by humans burning fuelin 74 videos
  4. global warmingphrasethe slow rise in the earth's average temperature, caused mainly by gases from burning fuelin 30 videos
  5. environmentnounthe area in which something exists or livesin 362 videos
  6. pollutionnounundesirable state of the natural environment being contaminated with harmful substances as a consequence of human activitiesin 28 videos
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  1. atmospherenounthe mass of air surrounding the Earthin 202 videos
  2. carbon dioxidephrasean invisible gas that people and animals breathe out and plants take inin 58 videos
  3. greenhouse gasphrasea gas, such as carbon dioxide, that traps heat in the air around the earthin 23 videos
  4. oceannouna large body of water constituting a principal part of the hydrospherein 268 videos
  5. volcanonouna fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases eruptin 19 videos
  6. earthquakenounshaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activityin 29 videos

Space

10 words · 10/29
  1. spacenounany location outside the Earth's atmospherein 733 videos
  2. sunnounthe star that is the source of light and heat for the planets in the solar systemin 341 videos
  3. moonnounthe natural satellite of the Earthin 190 videos
  4. starnouna huge ball of hot gas in space, like the Sun, that gives out light and heatin 404 videos
  5. planetnouna large, round object in space, such as Earth or Mars, that moves around a starin 387 videos
  6. solar systemphrasethe sun and the planets, moons and other objects that circle itin 76 videos
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  1. orbitverbtravel around a planet, star or moon on a curved pathin 151 videos
  2. telescopenouna magnifier of images of distant objectsin 61 videos
  3. cometnouna ball of ice and dust in space that grows a bright tail when near the sunin 17 videos
  4. asteroidnounany of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)in 50 videos

The body

11 words · 11/29
  1. human bodyphrasethe whole physical form of a person, with its bones, organs and bloodin 46 videos
  2. brainnounthe organ inside your head that controls thought, feeling and movementin 535 videos
  3. heartnounthe organ in your chest that pumps blood around your bodyin 452 videos
  4. lungnounone of the two organs in the chest that you breathe within 93 videos
  5. bloodnounthe red liquid that your heart pumps around your bodyin 297 videos
  6. bonenounrigid connective tissue that makes up the skeleton of vertebratesin 252 videos
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  1. musclenounone of the contractile organs of the bodyin 213 videos
  2. nervenounone of the long, thin threads in the body that carry messages between the brain and other partsin 110 videos
  3. organnouna fully differentiated structural and functional unit in an animal that is specialised for some particular functionin 103 videos
  4. skeletonnounthe hard structure (bones and cartilages) that provides a frame for the body of an animalin 58 videos
  5. blood vesselphrasea tube, such as a vein or artery, that carries blood around the bodyin 41 videos

Machines

10 words · 12/29
  1. machinenounany mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasksin 374 videos
  2. toolnounan implement used in the practice of a vocationin 300 videos
  3. enginenounmotor that converts thermal energy to mechanical workin 165 videos
  4. motornounmachine that converts other forms of energy into mechanical energy and so imparts motionin 115 videos
  5. wheelnouna round frame or disc that turns on a central rod, as on a car or bicyclein 146 videos
  6. levernouna rigid bar pivoted about a fulcrumin 36 videos
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  1. pumpnouna mechanical device that moves fluid or gas by pressure or suctionin 179 videos
  2. turbinenouna machine with blades that spin when steam, gas, water or wind pushes them, often to make electricityin 6 videos
  3. jet enginephrasean engine that pushes a plane forward by forcing out hot gas at the backin 9 videos
  4. mechanismnounthe technical aspects of doing somethingin 136 videos

Electricity and magnets

12 words · 13/29
  1. electricnounusing or providing or producing or transmitting or operated by electricityin 132 videos
  2. electricaladjectiverelating to or concerned with electricityin 84 videos
  3. electronicsnoundevices such as phones, TVs and computersin 59 videos
  4. electric currentphrasea flow of electricity through a wirein 9 videos
  5. circuitnounan electrical device that provides a path for electrical current to flowin 69 videos
  6. wirenouna metal conductor that carries electricity over a distancein 139 videos
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  1. cablenouna conductor for transmitting electrical or optical signals or electric powerin 81 videos
  2. plugverbpush the end of a cable into a socket to connect a devicein 128 videos
  3. voltagenounthe difference in electrical charge between two points in a circuit expressed in voltsin 23 videos
  4. light bulbnouna glass globe that glows when electricity passes through itin 25 videos
  5. magnetnounan object that pulls iron towards it and makes a magnetic fieldin 47 videos
  6. magnetic fieldphrasethe area around a magnet, or the earth, where its pull or push can be feltin 41 videos

Health science

12 words · 14/29
  1. medicinenounthe work and study of preventing, treating and curing illnesses and injuries, done by doctorsin 86 videos
  2. diseasenounan illness that affects people, animals or plantsin 175 videos
  3. virusnouna tiny germ, much smaller than bacteria, that can only grow inside living cells and often causes illnessin 47 videos
  4. bacterianounvery small living things, some of which cause diseasein 96 videos
  5. microbenouna living thing too small to see without a microscope, such as a germin 25 videos
  6. infectionnounthe pathological state resulting from the invasion of the body by pathogenic microorganismsin 66 videos
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  1. vaccinenouna substance, often given as an injection, that helps the body build protection against a diseasein 29 videos
  2. immune systemphrasethe cells and organs that protect the body from germs and diseasein 43 videos
  3. antibioticnouna chemical substance derivable from a mould or bacterium that can kill microorganisms and cure bacterial infectionsin 30 videos
  4. treatmentnouncare provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)in 108 videos
  5. diagnosisnouna doctor's finding of what illness a person hasin 42 videos
  6. x-rayphrasea picture of the inside of the body, made with rays that pass through soft tissuein 46 videos

Space travel

10 words · 15/29
  1. rocketnouna vehicle, such as a spacecraft, driven by a stream of hot gas from its enginein 128 videos
  2. launchnounthe act of propelling with forcein 284 videos
  3. astronautnouna person trained to go into spacein 92 videos
  4. spacecraftnouna vehicle that goes into spacein 61 videos
  5. spaceshipnouna vehicle that carries people through space, often in storiesin 35 videos
  6. satellitenounman-made equipment that orbits around the earth or the moonin 118 videos
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  1. space stationphrasea large craft that stays in orbit around the earth, where astronauts live and workin 72 videos
  2. missionnouna special assignment that is given to a person or groupin 255 videos
  3. landingnounthe act of coming down to the earth (or other surface)in 112 videos
  4. rovernouna vehicle that drives over the surface of a planet or moon to explore itin 40 videos

Light and sound

12 words · 16/29
  1. lightnounin physics, a kind of energy that travels in waves and that our eyes can seein 798 videos
  2. soundnounthe particular auditory effect produced by a given causein 796 videos
  3. colournouna visual attribute of things that results from the light they emit or transmit or reflectin 420 videos
  4. shadownounshade within clear boundariesin 103 videos
  5. mirrornounpolished surface that forms images by reflecting lightin 145 videos
  6. reflectionnounthe image of something as reflected by a mirror (or other reflective material)in 53 videos
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  1. echonounthe repetition of a sound resulting from reflection of the sound wavesin 43 videos
  2. vibrationnounthe act of vibratingin 42 videos
  3. wavenounin physics, a movement up and down or back and forthin 317 videos
  4. frequencynounthe number of occurrences within a given time periodin 93 videos
  5. lasernouna device that makes a strong narrow beam of lightin 88 videos
  6. speed of lightphrasehow fast light travels, about 300,000 kilometres a second, and nothing goes fasterin 72 videos

Forces and motion

11 words · 17/29
  1. forcenounin physics, a push or pull that can change how something movesin 652 videos
  2. gravitynounin physics, the force that pulls things towards each other, such as objects towards the Earthin 183 videos
  3. speednoundistance travelled per unit timein 431 videos
  4. motionnouna natural event that involves a change in the position or location of somethingin 213 videos
  5. pressurenounthe force pushing on a given area of a surface, measured in pascalsin 505 videos
  6. frictionnounthe resistance encountered when one body is moved in contact with anotherin 62 videos
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  1. massnounthe property of a body that causes it to have weight in a gravitational fieldin 325 videos
  2. accelerationnounin physics, the rate at which something gets fasterin 49 videos
  3. velocitynounspeed in a particular directionin 92 videos
  4. momentumnounthe product of a body's mass and its velocityin 79 videos
  5. kinetic energyphrasethe power an object has because it is movingin 30 videos

Living things

12 words · 18/29
  1. biologynounthe science that studies living organismsin 88 videos
  2. cellnounthe smallest basic unit of life, which all plants and animals are built fromin 295 videos
  3. organismnouna living thing that has (or can develop) the ability to act or function independentlyin 101 videos
  4. speciesnounin biology, a group of animals or plants of the same kind that can breed togetherin 276 videos
  5. mammalnounan animal that has hair or fur and feeds its young on milkin 100 videos
  6. insectnounsmall air-breathing arthropodin 63 videos
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  1. ecosystemnounall the living things in an area and how they depend on each other and their surroundingsin 73 videos
  2. habitatnounthe natural home of an animal or plantin 59 videos
  3. predatornounany animal that lives by preying on other animalsin 106 videos
  4. preynounanimal hunted or caught for foodin 76 videos
  5. extinctadjectiveno longer in existence; lost or especially having died out leaving no living representativesin 96 videos
  6. photosynthesisnounthe process by which plants use sunlight, water and carbon dioxide to make their foodin 21 videos

Research methods

12 words · 19/29
  1. testnountrying something to find out about itin 611 videos
  2. observeverbdiscover or determine the existence, presence, or fact ofin 172 videos
  3. observationnounthe act of observing; taking a patient lookin 107 videos
  4. predictverbmake a prediction about; tell in advancein 214 videos
  5. predictionnouna statement made about the futurein 132 videos
  6. samplenouna small part of something intended as representative of the wholein 127 videos
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  1. accurateadjectiveconforming exactly or almost exactly to fact or to a standard or performing with total accuracyin 143 videos
  2. hypothesisnouna proposal intended to explain certain facts or observationsin 97 videos
  3. variablenounsomething that is likely to vary; something that is subject to variationin 70 videos
  4. analyseverbconsider in detail and subject to an analysis in order to discover essential features or meaningin 108 videos
  5. conclusionnouna position or opinion or judgement reached after considerationin 93 videos
  6. scientific methodphrasethe way researchers test ideas: ask a question, make a guess, test it and check the resultsin 20 videos

Data

10 words · 20/29
  1. datanouna collection of facts from which conclusions may be drawnin 378 videos
  2. informationnounknowledge acquired through study or experience or instructionin 485 videos
  3. digitaladjectiveof a circuit or device that represents magnitudes in digitsin 164 videos
  4. analysisnounan investigation of the component parts of a whole and their relations in making up the wholein 111 videos
  5. databasenouna large, ordered store of information on a computerin 26 videos
  6. graphnouna visual representation of the relations between certain quantities plotted with reference to a set of axesin 63 videos
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  1. chartnouna visual display of informationin 68 videos
  2. statisticsnouna datum that can be represented numericallyin 48 videos
  3. averageadjectivelacking special distinction, rank, or status; commonly encounteredin 467 videos
  4. percentagenouna proportion in relation to a whole (which is usually the amount per hundred)in 95 videos

Maths

10 words · 21/29
  1. mathsnounthe study of numbers, amounts and shapesin 240 videos
  2. equationnouna mathematical statement that two expressions are equalin 132 videos
  3. formulanouna group of symbols that make a mathematical statementin 80 videos
  4. calculateverbmake a mathematical calculation or computationin 144 videos
  5. calculationnounthe procedure of calculating; determining something by mathematical or logical methodsin 73 videos
  6. fractionnouna small part or item forming a piece of a wholein 88 videos
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  1. rationounthe relative magnitudes of two quantities (usually expressed as a quotient)in 105 videos
  2. anglenounthe space between two lines that meet, measured in degreesin 187 videos
  3. geometrynounthe part of mathematics that studies shapes, lines, angles and spacein 47 videos
  4. probabilitynounhow likely it is that something will happen, often given as a numberin 83 videos

Engineering

11 words · 22/29
  1. engineernouna person who uses scientific knowledge to solve practical problemsin 298 videos
  2. designverbmake or work out a plan for; devisein 523 videos
  3. inventverbcome up with (an idea, plan, explanation, theory, or principle) after a mental effortin 182 videos
  4. inventionnouna creation (a new device or process) resulting from study and experimentationin 58 videos
  5. prototypenounthe first model of something, made to test itin 54 videos
  6. structurenouna thing constructed; a complex entity constructed of many partsin 322 videos
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  1. constructionnounthe act of constructing somethingin 90 videos
  2. componentnounone of the parts that something bigger is made of, especially a part of a machine or systemin 171 videos
  3. mechanicaladjectiverelating to or governed by or in accordance with mechanicsin 94 videos
  4. sensornouna device that detects light, heat, movement or soundin 77 videos
  5. 3d printerphrasea machine that builds solid objects layer by layer from a computer designin 7 videos

Chemistry

11 words · 23/29
  1. chemistrynounthe science of what substances are made of, how they behave and how they react togetherin 92 videos
  2. chemicaladjectiverelating to or used in chemistryin 204 videos
  3. chemical reactionphrasea process in which substances change into new substancesin 27 videos
  4. elementnouna basic chemical substance, such as gold or oxygen, that cannot be broken down into simpler substancesin 231 videos
  5. periodic tablephrasea chart that lists all the chemical elements in orderin 16 videos
  6. oxygennounthe gas in the air that people, animals and fires needin 156 videos
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  1. hydrogennounthe lightest gas, which burns easily and is part of waterin 91 videos
  2. carbonnouna chemical element found in all living things and in coal, oil and diamondsin 156 videos
  3. compoundnounin chemistry, a substance made of two or more elements joined together in fixed amountsin 81 videos
  4. mixturenounany foodstuff made by combining different ingredientsin 101 videos
  5. acidnounany of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a saltin 99 videos

Coding

10 words · 24/29
  1. codenounin computing, the instructions that make up a computer programin 256 videos
  2. programverbwrite the instructions that tell a computer what to doin 336 videos
  3. programmernouna person who writes computer codein 18 videos
  4. developernouna person or company that writes software, or that builds new houses on landin 41 videos
  5. algorithmnouna set of steps a computer follows to solve a problem or make a choicein 79 videos
  6. bugnouna fault or defect in a computer program, system, or machinein 64 videos
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  1. computer sciencephrasethe study of how computers work and how to write software for themin 30 videos
  2. binaryadjectiveof or pertaining to a number system have 2 as its basein 37 videos
  3. inputnounsignal going into an electronic systemin 75 videos
  4. outputnounproduction of a certain amountin 61 videos

AI and robots

10 words · 25/29
  1. artificial intelligencenouncomputer systems that can do tasks that usually need human thinking, such as learning or understanding languagein 63 videos
  2. machine learningphrasea type of AI in which computers learn from data instead of being given fixed rulesin 15 videos
  3. neural networkphrasea computer system built from layers of linked units, loosely based on the brain, that learns from datain 11 videos
  4. robotnouna machine that can do tasks on its own, sometimes shaped like a personin 100 videos
  5. roboticsnounthe science of designing and building machines that move and do tasks on their ownin 20 videos
  6. dronenounan aircraft without a pilot that is operated by remote controlin 59 videos
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  1. automationnounthe use of machines and computers to do work without peoplein 20 videos
  2. autonomousadjectivefree to make your own decisions and act without control from othersin 44 videos
  3. self-drivingphraseOf a motor vehicle: equipped with sensors and computer technology to allow it to drive without a human operator.in 16 videos
  4. simulationnounin computing, using a program to copy how something works in the real worldin 51 videos

Genes and evolution

12 words · 26/29
  1. dnanounthe chemical in every cell that carries the genes passed from parents to childrenin 126 videos
  2. genenouna short part of DNA, passed on from parents, that controls a feature of a living thingin 98 videos
  3. geneticadjectiveof or relating to or produced by or being a genein 97 videos
  4. genomenounthe complete set of DNA instructions in a living thingin 24 videos
  5. proteinnouna kind of molecule that builds and runs body cells, found in foods like meat, eggs and beansin 129 videos
  6. mutationnounin biology, a change in the genes or DNA of a living thingin 42 videos
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  1. evolutionnounin biology, the way kinds of living things slowly change and develop over a very long timein 158 videos
  2. evolveverbundergo development or evolutionin 265 videos
  3. natural selectionphrasethe process by which living things best suited to their surroundings survive and pass on their genesin 28 videos
  4. adaptationnounthe process of adapting to something (such as environmental conditions)in 68 videos
  5. fossilnounthe remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soilin 147 videos
  6. dinosaurnouna large reptile that lived millions of years ago and is now extinctin 85 videos

Atoms and particles

10 words · 27/29
  1. atomnounin science, the smallest part of an element that still behaves like that elementin 117 videos
  2. atomicadjectiveof or relating to or comprising atomsin 50 videos
  3. moleculenounin science, the smallest unit of a substance, usually a group of atoms joined togetherin 146 videos
  4. particlenouna body having finite mass and internal structure but negligible dimensionsin 163 videos
  5. electronnouna very small part of an atom with a negative chargein 94 videos
  6. protonnouna very small part in the middle of an atom, with a positive chargein 57 videos
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  1. neutronnouna tiny particle with no electric charge, found in the core of an atomin 41 videos
  2. nucleusnounthe positively charged dense centre of an atomin 48 videos
  3. photonnouna tiny packet of light energyin 54 videos
  4. radioactiveadjectivegiving off harmful energy as its atoms break downin 43 videos

Deep space

10 words · 28/29
  1. astronomynounthe science of stars, planets and spacein 22 videos
  2. universenouneverything that exists anywherein 258 videos
  3. galaxynouna huge group of stars, gas and dust in space, such as the Milky Wayin 115 videos
  4. black holephrasea place in space where gravity is so strong that nothing, not even light, can escapein 78 videos
  5. light yearphrasethe distance light covers in one year, about 9.5 trillion kmin 39 videos
  6. big bangphrasethe huge expansion that most scientists believe started the universe about 13.8 billion years agoin 60 videos
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  1. dark matterphraseunseen material in space that we know exists only from its gravityin 24 videos
  2. dark energyphrasean unknown force that seems to make the universe expand faster and fasterin 28 videos
  3. supernovanounthe huge, bright explosion of a star at the end of its lifein 30 videos
  4. neutron starphrasethe very dense, tiny core left after a big star explodesin 15 videos

Advanced physics

10 words · 29/29
  1. physicsnounthe science of matter and energy and their interactionsin 233 videos
  2. physicistnouna scientist who studies matter, energy, forces and motionin 93 videos
  3. relativitynounin physics, Einstein's theory that space and time depend on how the person measuring them is movingin 76 videos
  4. quantumnounin physics, the smallest amount of energy, or of another measurable thing, that can existin 97 videos
  5. quantum mechanicsphrasethe branch of physics that explains how atoms and smaller particles behavein 62 videos
  6. spacetimenounspace and time joined as one thing, which mass can bendin 66 videos
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  1. radiationnounenergy that is radiated or transmitted in the form of rays or waves or particlesin 128 videos
  2. wavelengthnounthe distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wavein 43 videos
  3. electromagneticadjectiveto do with electricity and magnets acting together, as in light and radio wavesin 58 videos
  4. nuclear fusionphrasejoining small atoms to make a bigger one, which gives off huge energy, as in the sunin 11 videos

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Daily
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Moments
All 320 words have a clip
Sources
Picked by Talk, CC BY-SA 4.0
Words
Picked by Talk.
How Talk picked them
We started from the words that set science and tech videos apart from the rest of the catalogue, kept general science and technology vocabulary that learners can hear in at least two open videos (almost all in three or more), and grouped it by topic from everyday to specialised.
Licence
Talk shares this list under CC BY-SA 4.0.
Meanings
From Wiktionary contributors (CC BY-SA 4.0) and Princeton WordNet, used under the WordNet licence; Talk wrote or reworded some in plain English. WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
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