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Coloured Flames - Periodic Table of Videos

Video vocabulary

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

darling

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US / 'dɑ:lɪŋ /

UK / ˈdɑrlɪŋ /

A2
  • noun
  • Dearly loved person

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

amount

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US / ə'maʊnt /

UK / əˈmaʊnt /

A1
  • noun
  • Quantity of something
  • verb
  • To add up to a certain figure

emission

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US / iˈmɪʃn /

UK / ɪˈmɪʃən /

B2
  • noun
  • A substance (e.g. gas) released into the air

stuff

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US / stʌf /

UK / stʌf /

A1
  • noun
  • Generic description for things, materials, objects
  • verb
  • To push material inside something, with force

those

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US / ðəʊz /

UK / ðoz /

A1
  • determiner
  • The people or things we are talking about
  • pronoun
  • The objects far from the speaker

coffee

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US / ˈkɒfi /

UK / ˈkɔ:fi /

A1
  • adjecitve
  • A brown chocolate color
  • noun
  • A brown drink made from roasted beans and water

source

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US / sɔ:s /

UK / sɔrs, sors /

A2
  • adjecitve
  • Produces or provides what is wanted or needed
  • noun
  • Piece of information; a person giving information
  • Place from which something necessary comes
  • verb
  • To get, e.g. a raw material, from somewhere

test

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US / test /

UK / test /

A1
  • noun
  • A medical examination
  • Action to establish the truth or nature of
  • Examination; questions to measure knowledge
  • verb
  • To be given a medical examination
  • To try to establish the truth or nature of
  • To ask a series of questions to measure knowledge

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

charge

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US / tʃɑ:dʒ /

UK / tʃɑrdʒ /

A2
  • noun
  • An attack by running quickly toward someone
  • A price for a service or goods
  • When a battery has a certain amount of electricity
  • Amount of money you pay for a service
  • verb
  • To run quickly toward someone to attack them
  • To ask for money as a price for a service or goods
  • To put electricity in a battery
  • To give responsibility to take care of or manage
  • To state that someone has committed a crime

exothermic

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US / ˌeksəʊˈθɜ:mɪk /

UK / ˌeksoʊˈθɜ:rmɪk /

A1
  • adjecitve
  • Occurring or formed with the liberation of heat

steam

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US / sti:m /

UK / stim /

A2
  • adjecitve
  • (Train, engine) powered by boiling water
  • noun
  • Mist collecting on a surface when wet air cools
  • Source of stamina, strength or energy
  • Mist of water in the air formed when water boils
  • verb
  • To cover a surface with steam, so as to clean it
  • To cook in mist of tiny drops from boiling water
  • To produce or give off a hot gas by boiling liquid
  • To travel or move using steam as a force

water

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US / 'wɔ:tə(r) /

UK / ˈwɔtɚ, ˈwɑtɚ /

A1
  • noun
  • Clear liquid that forms the seas, rivers and rain
  • Large area such as an ocean or sea
  • verb
  • (Of the eyes) to produce tears
  • (Mouth) to become wet at the thought of nice food
  • To pour liquids onto a plant to keep it alive

green

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US / gri:n /

UK / ɡrin /

A1
  • adjecitve
  • Color of young leaves
  • Covered with vegetation, e.g. grass
  • Concerned about protecting the environment
  • The color of young leaves
  • Lacking in experience/knowledge due to being young
  • Being not fully grown or ripe, as in fruit
  • noun
  • Large grassy area
  • used as a part of a name of a place (UK)

fact

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US / fækt /

UK / fækt /

A1
  • noun
  • Something that is known or proved to be true

energetic

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US / ˌenəˈdʒetɪk /

UK / ˌɛnɚˈdʒɛtɪk /

A2
  • adjecitve
  • Possessing, exerting or displaying energy

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

nitrate

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US / 'naɪtreɪt /

UK / ˈnaɪˌtret, -trɪt /

B2
  • noun
  • Salt or ester of nitric acid

series

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US / ˈsɪəri:z /

UK / ˈsɪriz /

A1
  • noun
  • Set of stories or articles on a particular subject
  • other
  • Number of things that happen one after another

sort

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US / sɔ:t /

UK / sɔrt /

A1
  • noun
  • Group or class of similar things or people
  • verb
  • To organize things by putting them into groups
  • To deal with things in an organized way

should

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US / ʃʊd /

UK / ʃʊd /

A1
  • other
  • Used to indicate what is proper or reasonable

white

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US / waɪt /

UK / hwaɪt, waɪt /

A1
  • adjecitve
  • Belonging to a race of people with light skin
  • Of the color of fresh snow and milk
  • noun
  • Person's name
  • Lightest color; The color of fresh snow.

sooty

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US / ˈsʊti /

UK / ˈsʊti, ˈsuti /

C1
  • adjecitve
  • Concerning the fine, black powder from burning

straight

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US / streɪt /

UK / stret /

A2
  • adjecitve
  • Not having curves, bends, or angles
  • Not gay; heterosexual
  • honest and direct
  • adverb
  • in a line; immediately; honestly and directly

bond

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US / bɒnd /

UK / bɑnd /

A2
  • noun
  • Rope, chain or other thing used to tie someone up
  • Closeness that is shared between people or groups
  • Loan that a government must buy back by a set date
  • Written agreement to pay back borrowed money
  • Joint or connection, often using glue
  • verb
  • To develop a close relationship with
  • To become joined or connected, e.g. using glue

use

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US / ju:s /

UK / ju:s /

A1
  • noun
  • Ability to employ something
  • Need to enable it to work
  • Permission to do something with something
  • Act of spending money
  • Operation of a machine for its function
  • verb
  • To have; to eat, drink, consume etc.
  • To need to operate or work
  • To operate a machine, e.g. a computer
  • To treat a person badly
  • To do something with, for a task or purpose

burn

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US / bɜ:n /

UK / bɚn /

A1
  • noun
  • Damage from fire or heat
  • verb
  • To destroy with fire
  • To feel pain and heat
  • To use as fuel for a fire to make light or heat
  • To overcook food with too much heat it goes black

heat

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US / hi:t /

UK / hit /

A2
  • noun
  • State of anger, excitement, or arguing
  • Particular temperature at which to cook something
  • High temperature
  • One of series of races to find the finalists
  • Hot temperature, conditions, or weather
  • verb
  • To make hot or hotter

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

A2
  • adjecitve
  • Being in something
  • Being in a building
  • adverb
  • Into a house; indoors
  • noun
  • Inner part or surface of something

component

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US / kəmˈpəʊnənt /

UK / kəmˈponənt /

A2
  • adjecitve
  • Being a part of something
  • noun
  • One of the parts that something is made up of

here

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US / hɪə(r) /

UK / hɪr /

A1
  • adverb
  • In this place; at this location, position or time

small

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US / smɔ:l /

UK / smɔl /

A1
  • adjecitve
  • Little in size; not big
  • (Of letters) not written in capital letters
  • Being insignificant or minor
  • (Of a business) with few people or things; local
  • (Of voice) being soft and quiet
  • (Of a child) being young

try

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US / traɪ /

UK / traɪ /

A1
  • noun
  • Act of putting the ball over the rugby goal line
  • verb
  • To make an effort, to attempt to do something
  • To examine someone or something in a court of law
  • To test to see if it is good or you like it
  • To make a person go through hardship; test
  • To examine something to see if it works

carbon

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US / 'kɑ:bən /

UK / ˈkɑrbən /

B1
  • noun
  • Chemical element with an atomic number of 6

importantly

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US / ɪmˈpɔːtntli /

UK / ɪmˈpɔːrtntli /

A2
  • adverb
  • In an important way;

lilac

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US / 'laɪlək /

UK / ˈlaɪlək, -lɑk, -læk /

C1
  • noun
  • Garden tree, often with pale purple flowers

reason

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US / 'ri:zn /

UK / ˈrizən /

A1
  • noun
  • Ability to think about facts and form a judgment
  • Explanation for why something occurred or was done
  • verb
  • To think and make conclusions in a logical manner

too

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US / tu: /

UK / tu /

A1
  • adverb
  • In addition, also; with emphasis
  • Say that something is more than you want

will

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US / wɪl /

UK / wɪl /

A1
  • noun
  • Desire or choice of someone
  • Document saying who gets your money when you die
  • Strong desire to do something; determination
  • Desire to do something; strong wish to do
  • other
  • Used with verbs to express the future
  • verb
  • To leave property to someone after your death
  • To use mental effort to make something happen
  • Am (is, are) likely to do
  • To influence someone to do something
  • To make something happen by strongly wanting it

associate

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US / ə'səʊʃɪeɪt /

UK / əˈsoʊʃiˌeɪt /

B1
  • adjecitve
  • Part of a job title indicating a junior position
  • noun
  • Partner in professional work, e.g. in law
  • verb
  • To spend time with other people; mix with
  • To form a connection in your mind between things

sure

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US / ʃʊə(r) /

UK / ʃʊr /

A1
  • adjecitve
  • Having no doubts about something
  • Have confidence in your own words or actions
  • Firmly established or held; being firm or stable
  • Being correct or true
  • adverb
  • What you say to agree willingly

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

absolute

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US / ˈæbsəlu:t /

UK / ˈæbsəˌlut /

A2
  • adjecitve
  • Complete; total; pure; not limited in any way
  • noun
  • Something that is complete, total, pure, certain

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

different

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US / ˈdɪfrənt /

UK / ˈdɪfrənt /

A1
  • adjecitve
  • Not of the same kind; unlike other things

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

reaction

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US / rɪ'ækʃn /

UK / riˈækʃən /

A2
  • noun
  • Bodily response to a drug or something eaten
  • Feeling or action in response to something

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

second

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US / 'sekənd /

UK / ˈsɛkənd /

A1
  • adjecitve
  • 2nd; the one following first
  • noun
  • Unit of time; one sixtieth of a minute
  • Short period of time that you wait for someone
  • (Do) soon

excite

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US / ɪk'saɪt /

UK / ɪkˈsaɪt /

A2
  • verb
  • To make something or someone become more active
  • To make someone feel happy, interested or eager

apple

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US / ˈæpl /

UK / ˈæpəl /

A1
  • noun
  • Hard round red or green fruit with a white center

case

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US / keɪs /

UK / kes /

A1
  • noun
  • Container used to carry things, e.g. clothes
  • Set of facts about a crime
  • Set of facts about an event
  • Example or instance of something
  • verb
  • To find out about a place, as in planning to steal

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

great

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US / ɡreɪt /

UK / ɡret /

A1
  • adjecitve
  • Very large in size
  • Very important
  • Very good; fantastic; wonderful
  • adverb
  • Very good; better than before
  • noun
  • Successful and well-admired person

mix

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US / mɪks /

UK / mɪks /

A2
  • noun
  • A combination of more than two things
  • verb
  • To combine two or more things to make one
  • To meet and get along with others, e.g. at a party

oxygen

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US / 'ɒksɪdʒən /

UK / ˈɑksɪdʒən /

B1
  • noun
  • A gas in the air that we need to breathe

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

colour

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US / ˈkʌlə(r) /

UK / ˈkʌlɚ /

A1
  • noun
  • Quality of things you can see, e.g. red, blue
  • Pink or red in your face, e.g. after being ill
  • The shade of someone's skin e.g. black, or yellow
  • verb
  • To change or affect someone's opinion
  • To make something colorful using colored pencils

instantly

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US / ˈɪnstəntli /

UK / ˈɪnstəntli /

A2
  • adverb
  • In a manner without delay; immediately

practice

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US / 'præktɪs /

UK / ˈpræktɪs /

A2
  • noun
  • The office and place for legal or medical work
  • Doing something many times to become better at it
  • verb
  • To work as a doctor or lawyer
  • To live according to the teachings of a religion
  • To do something many times to improve a skill

suppose

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US / sə'pəʊz /

UK / səˈpoʊz /

A2
  • conjunction
  • What if
  • verb
  • To imagine or guess what might happen

exciting

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US / ɪkˈsaɪtɪŋ /

UK / ɪkˈsaɪtɪŋ /

A2
  • adjecitve
  • Creating interest, happiness or pleasurable fear
  • verb
  • To cause a reaction; make active
  • To make someone feel happy, interested or eager

heatproof

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US / ˈhiːtpruːf /

UK / ˈhiːtpruːf /

A1
  • adjective
  • Able to resist great heat.

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

first

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US / fɜ:st /

UK / fɚst /

A1
  • adjecitve
  • 1st; Coming before all others in time or place
  • noun
  • Something that has not happened before
  • Position of the winner of a competition

particularly

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US / pəˈtikjuləli /

UK / pɚˈtɪkjələli, pəˈtɪk- /

A2
  • adverb
  • Specially; more than others

sue

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US / su: /

UK / su /

B2
  • noun
  • Person's name
  • verb
  • To take legal action against someone

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

A1
  • noun
  • Symbols such as 1, 2, 56, 793
  • Particular song or dance performed during a show
  • Total quantity or amount of things
  • verb
  • To put numbers on things
  • To assign a sequence within a group, series, set
  • To claim to be part of a larger group, series, set

greeny

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US / 'gri:nɪ /

UK / 'gri:nɪ /

B1
  • adjecitve
  • Slightly green; greenish

lovely

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US / ˈlʌvli /

UK / ˈlʌvli /

A1
  • adjecitve
  • Attractive or beautiful

place

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US / pleɪs /

UK / ples /

A1
  • noun
  • Particular location, area or region
  • verb
  • To put someone in a particular type of situation
  • To put something in a certain location or position

bench

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US / bentʃ /

UK / bɛntʃ /

B1
  • noun
  • Part of the room in court where the judge sits
  • Long (wooden) seat 2 people often found in a park
  • Seating area for teams at a sports events
  • verb
  • To prevent a player from playing in a game

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

away

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US / ə'weɪ /

UK / əˈwe /

A1
  • adjecitve
  • Not present
  • adverb
  • Disappear completely
  • Doing something with a lot of energy
  • Not here; far from here; in a different direction
  • To a different area, location

upstairs

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US / ˌʌpˈsteəz /

UK / ˌʌpˈsterz /

C1
  • adverb
  • On a floor above
  • noun
  • The floor above you in a building

careful

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US / ˈkeəfl /

UK / ˈkerfl /

A2
  • adjecitve
  • Trying not to make mistakes; working slowly

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

salt

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US / sɔ:lt /

UK / sɔlt /

A2
  • adjecitve
  • Being preserved or seasoned with salt
  • noun
  • Natural white crystal used to flavor food
  • verb
  • To add salt to food in order to improve its taste
  • To add salt to ice in order to melt it
  • To preserve food by adding salt

break

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US / breɪk /

UK / brek /

A1
  • noun
  • Time you stop an activity before continuing
  • End of a relationship
  • An escape from a place such as a jail
  • (Lucky) advantage or benefit from something
  • Find a solution or answer to a problem or crime
  • Change in the weather
  • verb
  • To create a new record e.g. running the 100m dash
  • To form a crack in something
  • To burst or become damaged
  • To end a relationship
  • To escape from a place such as a jail
  • To train a wild animal e.g. a horse
  • To separate into pieces by force, or by dropping
  • To act against a law, rule, or promise
  • To become known suddenly, as in the news
  • To not do what you promised e.g. not keep promises
  • To solve a crime, or answer a problem
  • To stop functioning properly
  • To suddenly start, open or commence
  • To change in pitch suddenly, as in a voice
  • To fall on the shore, as in waves
  • To begin or change suddenly; the dawn or weather
  • To defeat by causing the person to lose their will

fantastic

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US / fænˈtæstɪk /

UK / fænˈtæstɪk /

A2
  • adjecitve
  • Strange or unusual in design or appearance
  • Very large, fast or great
  • Hard to believe; amazing

onto

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US / ˈɒntə /

UK / ˈɑnˌtu, -tə, ˈɔn- /

A1
  • preposition
  • Towards a certain direction/into a certain area

see

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US / si: /

UK / si /

A1
  • verb
  • To go on a date with someone
  • To predict whether something is, or will be true
  • To understand what someone says
  • To use your eyes to look at something
  • To visit a place often for sightseeing or pleasure
  • To visit or meet with someone
  • To find out by waiting or looking
  • To watch (a game, movie or TV show)

exposure

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US / ɪk'spəʊʒə(r) /

UK / ɪkˈspoʒɚ /

A2
  • noun
  • Allowing light through a cameras lens onto film
  • Being talked about in the media
  • Act of making something that is secret known
  • Experience of something directly

mixed

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US / mɪkst /

UK / mɪkst /

A2
  • verb
  • To combine two or more things to make one
  • To meet and get along with others, e.g. at a party

honest

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US / ˈɒnɪst /

UK / ˈɑnɪst /

A2
  • adjecitve
  • Good, truthful, sincere, or faithful; trustworthy

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

periodic

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US / ˌpɪəriˈɒdɪk /

UK / ˌpɪriˈɑ:dɪk /

A2
  • adjecitve
  • Happening regularly, but not frequently

same

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US / seɪm /

UK / sem /

A1
  • adjecitve
  • Being equal in quality and amount
  • Identical; not different
  • Not changing; constant

transform

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US / træns'fɔ:m /

UK / trænsˈfɔrm /

C2
  • verb
  • To change the shape completely in a good way

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

deliver

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US / dɪ'lɪvə(r) /

UK / dɪˈlɪvɚ /

A2
  • verb
  • To give birth to a child; help a woman give birth
  • To save someone from a problem or crisis
  • To keep a promise; do what you say you would
  • To present something to a group, as a speech
  • To take something to a person or place

blue

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US / blu: /

UK / blu /

A1
  • adjecitve
  • Color of the clear sky
  • Feeling sad or down

brilliant

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US / 'brɪlɪənt /

UK / ˈbrɪljənt /

A2
  • adjecitve
  • Having a great amount of intelligence or talent
  • Being very bright, like a diamond; shining

copper

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US / 'kɒpə(r) /

UK / ˈkɑpɚ /

B1
  • noun
  • Reddish-brown metal used in cables or wires

dirty

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US / ˈdɜ:ti /

UK / ˈdɜ:rti /

A2
  • adjecitve
  • Not clean
  • Not fair; dishonest or dishonorable
  • verb
  • To make something not clean; soil

chlorate

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US / ˈklɔːrɪt /

UK / ˈklɔreɪt /

A1
  • noun
  • Any salt of chloric acid

excited

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US / ɪkˈsaɪtɪd /

UK / ɪkˈsaɪtɪd /

A2
  • adjecitve
  • Happy, interested or eager; enthusiastic
  • verb
  • To make something or someone become more active
  • To make someone feel happy, interested or eager

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

tricolour

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US / ˈtrɪkələ(r) /

UK / ˈtraɪkʌlər /

A1
  • noun
  • Any flag, badge, ribbon, etc, with three colours

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

good

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US / ɡʊd /

UK / ɡʊd /

A1
  • adjecitve
  • Proper, appropriate or right
  • (Of an amount) enough; plenty
  • Excellent; high quality
  • Acting well or properly; of moral character
  • In a positive or happy emotional state
  • noun
  • Advantage or benefit

give

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US / ɡɪv /

UK / ɡɪv /

A1
  • noun
  • Degree of flexibility in something, a material
  • verb
  • To hand over or present something to someone
  • To cause someone to have or experience something

barium

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US / ˈbeəriəm /

UK / ˈberiəm /

C1
  • noun
  • Element with atomic number 56

distribute

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US / dɪˈstrɪbju:t /

UK / dɪˈstrɪbjut /

A2
  • verb
  • To hand out or give to people
  • To send products to stores to sell
  • To spread something over an area

color

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US / 'kʌlə(r) /

UK / ˈkʌlɚ /

A1
  • noun
  • Quality of things you can see, e.g. red, blue
  • Pink or red in your face, e.g. after being ill
  • The shade of someone's skin e.g. black, or yellow
  • verb
  • To change or affect someone's opinion
  • To make something colorful using colored pencils

maybe

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US / ˈmeɪbi /

UK / ˈmebi /

A1
  • adverb
  • Possibly but not certainly; perhaps

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

quite

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US / kwaɪt /

UK / kwaɪt /

A1
  • adverb
  • Not very; fairly
  • Very; In a complete or total manner

fuel

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US / 'fju:əl /

UK / ˈfjuəl /

A2
  • noun
  • Material used to produce heat or power when burned
  • verb
  • To give power to (a mob, anger, etc.); incite
  • To provide gas or petrol for something

vapour

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US / ˈveɪpə(r) /

UK / ˈvepɚ /

B2
  • noun
  • Droplets of liquid spread thinly in air

strontium

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US / ˈstrɒntiəm /

UK / ˈstrɑ:nʃiəm /

C2
  • noun
  • Soft silver-white or yellowish metallic element

want

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US / wɔnt /

UK / wɑnt, wɔnt /

A1
  • noun
  • Something you desire or wish for
  • State or condition of poverty
  • verb
  • To desire or wish for something; hope for a thing

video

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US / 'vɪdɪəʊ /

UK / ˈvɪdiˌo /

A2
  • adjecitve
  • Of a moving film, with sound
  • noun
  • Recording capturing action with sound
  • verb
  • To make a moving film of, with sound

ion

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US / 'aɪən /

UK / ˈaɪən /

B2
  • noun
  • Atoms with either a positive or negative charge

now

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US / naʊ /

UK / naʊ /

A1
  • adverb
  • At the present time or moment
  • Right away or in the next possible moment
  • Used to refer to something that just happened
  • Time between the present and a moment in the past
  • conjunction
  • Resulting from or because of something

potassium

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US / pəˈtæsiəm /

UK / pəˈtæsiəm /

B2
  • noun
  • A common, soft, silvery white metal with many uses

along

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US / əˈlɒŋ /

UK / əˈlɔ:ŋ /

A1
  • adverb
  • As a companion; taken with someone
  • preposition
  • At a point on a line

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

flame

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US / fleɪm /

UK / flem /

A2
  • noun
  • The red part you can see in fire
  • verb
  • To glow
  • To burn or glow in a fire
  • To glow (as in the sun or sunset)
  • To send angry messages over the Internet; to troll

hot

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US / hɒt /

UK / hɑ:t /

A1
  • adjecitve
  • Angry or excited
  • Being very good at something
  • Having a high temperature
  • Popular and causing a great deal of excitement
  • Attractive in a sexually exciting way
  • (Of food) very spicy
  • Stolen; dangerous to buy or trade in

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

chemistry

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US / 'kemɪstrɪ /

UK / ˈkɛmɪstri /

B1
  • noun
  • The study of the structure of substances

keep

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US / ki:p /

UK / kip /

A1
  • noun
  • Large, strong tower in the middle of a castle
  • Money spent on you so you can live in a place
  • verb
  • To continue doing something; not to stop
  • To stop balls going in a goal in sports
  • To not give back or return something
  • (Of food) to not spoil or not rot
  • To take possession of something to own, e.g. a pet
  • To have and continue to hold something
  • To do something that you have promised or agreed
  • To stay in a certain place or condition
  • To maintain the rules

efficiency

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US / ɪˈfɪʃnsi /

UK / ɪˈfɪʃənsi /

A2
  • noun
  • Working well; producing something without waste

put

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US / pʊt /

UK / pʊt /

A1
  • phrasal verb
  • to make a light stop shining by pressing or moving a switch
  • verb
  • To move or place a thing in a particular position
  • To rate something in importance or value
  • To write or say something in a certain manner

spectrum

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US / 'spektrəm /

UK / ˈspɛktrəm /

B1
  • noun
  • The wavelengths of colors from red to violet
  • a range of different positions, opinions, etc. between two extreme points

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

characteristic

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US / ˌkærəktəˈrɪstɪk /

UK / ˌkærəktəˈrɪstɪk /

A2
  • adjecitve
  • Typical or distinctive

experiment

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US / ɪk'sperɪmənt /

UK / ɪkˈspɛrəmənt /

A2
  • noun
  • Test performed to assess new ideas or theories
  • verb
  • To create and perform tests to research something
  • To try something new that you haven't tried before

come

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US / kʌm /

UK / kʌm /

A1
  • verb
  • To arrive at a place
  • (Of mail) to be delivered
  • To move toward someone; go with someone
  • To reach a certain point or state

observe

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US / əbˈzɜ:v /

UK / əbˈzɜ:rv /

A2
  • verb
  • To celebrate a particular holiday/religious event
  • To obey or follow laws, rules, or customs
  • To watch carefully; to make a comment

tube

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US / tju:b /

UK / tub,tjub /

B1
  • noun
  • Plastic or metal container for soft substances
  • Long hollow pipe used to hold or liquids or gases

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

sugar

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US / ˈʃʊgə(r) /

UK / ˈʃʊɡɚ /

A2
  • noun
  • Substance which the body stores or uses for energy
  • Amount of sugar contained in a small spoon
  • Used to address someone you like or love
  • White sweet substance used to make foods sweeter
  • verb
  • To add, put on, or mix a food or drink with sugar

volume

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US / ˈvɒlju:m /

UK / ˈvɑljum, -jəm /

A2
  • noun
  • Number or amount of something e.g. sales
  • Amount of space that something takes up
  • One book that is part of a set of books
  • Level of sound produced by radio or television

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

A1
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another

show

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US / ʃəʊ /

UK / ʃo /

A1
  • noun
  • False display of love, emotion or action
  • An event for displaying or promoting goods
  • Play, opera or theater production
  • Presentation that is broadcast on TV or radio
  • verb
  • To be easily seen or displayed
  • To display your emotions or feelings
  • To let someone see something; display
  • To explain or teach how something is done
  • To lead someone somewhere; point them to something
  • To prove something to be true, correct
  • To reveal or allow something to be seen

bit

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US / bɪt /

UK / bɪt /

A1
  • noun
  • Device put in a horse's mouth to control it
  • Small piece of something
  • verb
  • (E.g. of fish) to take bait and be caught

chloride

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US / 'klɔ:raɪd /

UK / ˈklɔrˌaɪd, ˈklor- /

A1
  • noun
  • A mixture of chlorine and another chemical

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

nice

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US / naɪs /

UK / naɪs /

A1
  • adjecitve
  • Being attractive or of high quality or value
  • Good or enjoyable
  • Being kind or friendly

red

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US / red /

UK / rɛd /

A1
  • adjecitve
  • Being the color of blood

pour

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US / pɔ:(r) /

UK / pɔr, por /

A2
  • verb
  • To fill a person's glass or cup with a drink
  • To make something flow in a steady stream
  • To rain very heavily

add

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US / æd /

UK / æd /

A1
  • verb
  • To include as well
  • To put two things or numbers together, e.g. 2+2

dioxide

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US / daɪˈɒksaɪd /

UK / daɪˈɑksaɪd /

B2
  • noun
  • An oxide containing two oxides per molecule

luminescent

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US / ˌlu:miˈnesnt /

UK / ˌluməˈnɛsənt /

C1
  • adjecitve
  • Emitting light not caused by heat

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

fast

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US / fɑ:st /

UK / fæst /

A1
  • adjecitve
  • In a way that is difficult to move or change
  • Moving or able to move quickly
  • Showing time that is later than the actual time
  • adverb
  • With a great deal of speed
  • noun
  • Period of time when a person chooses not to eat
  • verb
  • To refuse food for a long time

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

who

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US / hu: /

UK / hu /

A1
  • pronoun
  • Which person
  • Used to introduce information about people

dry

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US / draɪ /

UK / draɪ /

A1
  • adjecitve
  • (Of humor) clever, but not obvious; ironic
  • Without water; not wet
  • (Of wine, etc.) not sweet
  • Without butter or jam
  • verb
  • To remove liquid or water from something

intimately

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US / 'ɪntɪmɪtlɪ /

UK / ˈɪntəmɪtlɪ /

B2
  • adverb
  • Privately and personally

rapid

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US / ˈræpɪd /

UK / ˈræpɪd /

B1
  • adjecitve
  • Moving or happening very quickly
  • noun
  • Rough and fast-moving part of a river

possible

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US / ˈpɒsəbl /

UK / ˈpɑsəbəl /

A1
  • adjecitve
  • Being able or appropriate for a task or purpose
  • Having a chance of happening, or being true

mixture

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US / ˈmɪkstʃə(r) /

UK / ˈmɪkstʃɚ /

B1
  • noun
  • Something made by combining two or more things

spectrometer

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US / spekˈtrɒmɪtə(r) /

UK / spekˈtrɑ:mɪtə(r) /

C1
  • noun
  • Spectroscope for obtaining a mass spectrum

way

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US / weɪ /

UK / we /

A1
  • adverb
  • Used to emphasize the amount of something
  • noun
  • Particular aspect of something being thought about
  • One of various choices that could be made
  • Particular existing condition or state
  • (Often long) distance or length of time
  • How something is done
  • Route to go to a place
  • Small street
  • Usual behavior, emotions or habits of someone

alright

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US / ɔ:lˈraɪt /

UK / ɔlˈraɪt /

A2
  • adjecitve
  • OK; fine; good

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

combustion

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US / kəmˈbʌstʃən /

UK / kəmˈbʌstʃən /

B2
  • noun
  • An act or instance of burning

mat

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US / mæt /

UK / mæt /

B1
  • noun
  • Piece of material used to cover, protect the floor
  • Piece of material put on table, etc. to protect it
  • Thick mass of something, such as hair

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

able

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US / 'eɪbl /

UK / ˈebəl /

A2
  • adjecitve
  • Skilled; good at something
  • Having the ability to do something

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

excitement

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US / ɪkˈsaɪtmənt /

UK / ɪkˈsaɪtmənt /

A2
  • noun
  • When people feel very happy and enthusiastic

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

little

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US / 'lɪtl /

UK / ˈlɪtl /

A1
  • adjecitve
  • Being short in length of time
  • Not great in size, amount, or degree; small
  • Being very young or younger than others
  • adverb
  • By an amount or degree that is not very much
  • Not often; rarely
  • noun
  • A person's name

let

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US / let /

UK / lɛt /

A1
  • verb
  • To allow someone to do something
  • Introducing a suggestion to do something together
  • To rent a house, etc. to others

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

wow

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US / waʊ /

UK / waʊ /

A1
  • exclamation
  • Sound people make when they make are impressed
  • verb
  • (Informal) to greatly impress someone

chemical

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US / ˈkemɪkl /

UK / ˈkɛmɪkəl /

A2
  • adjecitve
  • Made of various elements
  • noun
  • Basic substance produced by mixing elements

cheap

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US / tʃi:p /

UK / tʃip /

A1
  • adjecitve
  • Not costing a lot of money
  • Having a low quality or value
  • Not liking to spend money; mean; stingy

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general
  • Subtitles section
  • I'm going to make an exciting mixture, a mixture which we can use to show a number of things.
  • The first of which is going to be the rapid reaction of a fuel with a source of oxygen, and we can use the heat from that rapid combustion reaction to excite other ions, because you know we could go and have a look at an emission spectrometer and do all sorts of elegant experiments like that,
  • But this one is a really cheap and dirty and honest way of seeing those different colours from flame tests.
  • So here I've got some sugar.
  • This is just the stuff I put in my coffee, in fact I went and got this from our lovely Sue upstairs, who's an absolute darling, and you can see I'm going to put quite a charge in because we're going to use maybe two or three different experiments from this mixture today.
  • So this is the second component of our mixture, and that's potassium chlorate, and the reason we're using chlorate is because it's got lots of oxygen in it, it allows me to put lots of oxygen intimately close to all of the exciting bonds that I want to break inside the sugar.
  • We need to add about the same volume of potassium chlorate.
  • This isn't particularly good practice, So we shake it all up, give it a good mix.
  • Now we need to test our mixture.
  • So we're going to pour a small amount of it out on the bench, onto a heatproof mat.
  • So what's in this mixture?
  • We've got sugar, and we've got chlorate ions, because they're delivering all of that nice oxygen, and the chlorate ions are delivered with potassium.
  • So realistically what we should see is a nice luminescent flame from the burning sugar, with the colour of excited potassium, so that should be a nice lilac colour, so the emission spectrum of the potassium ion is lilac.
  • So let's have a look, alright?
  • Fantastic!
  • A lovely reaction.
  • All of that energy in the sugar, and all of the carbon is being transformed into carbon dioxide, a little bit of elemental carbon there, you know the nice sooty carbon, a lot of water vapour, a lot of steam,
  • And what you saw there with all of that steam and that energy was the lovely lilac emission spectrum of that potassium ion.
  • So we need to take some strontium ions, and in this case I've got a small amount of strontium nitrate, okay?
  • Now I'm going to take a small amount and put it into a test tube.
  • Now we take our excitement mixture, give it a bit of a shake, mix it all up so that all of those metal ions are mixed into all of that nice source of carbon and energy.
  • Now all we need to do is add a little bit of energy.
  • Wow!
  • What a fantastic reaction!
  • Really, really energetic, lots of energy coming out, lots of hot steam, lots of hot CO2, and importantly a lovely, lovely red colour from the strontium emission.
  • Fantastic!
  • So we're going to use the same mixture of sugar and chlorate, but this time I'm going to add a small amount of a different metal salt, and this time I'm going to use barium nitrate, okay?
  • And again I'm going to add some of my combustion mixture now.
  • We're using the energy of that combustion of the sugar to excite the barium so that we can observe its emission spectrum, or the flame test colour.
  • Again, pour it out onto a heatproof mat, so, again.
  • So this time, again, we saw the same exciting chemical reaction, we saw that same exothermic reaction, lots of CO2, lots of steam again, but this time the flame was coloured green, and this is the characteristic apple green which is associated with barium salts,
  • So much more exciting flame test.
  • Every time we change the metal we change the colour, so this time we're going to try some copper, this is copper 2 chloride.
  • So instantly you'll see that the copper salt is a really nice greeny blue colour, so this is going to change the view of the chemistry straight away.
  • Now I'm being very careful to make sure that this doesn't have too much, I suppose, exposure to the atmosphere because I don't want water to get into this chemistry, I want to try and keep it as dry as possible.
  • Now this time you'll be able to see the efficiency of that nice greeny copper salt distributing into that white combustion mixture.
  • Now that, that was great, a lovely blue flame from that copper chloride, wasn't that really fantastic?
  • That was brilliant.
  • So I'm going to make a mixture now, well I'm going to make a series of mixtures, which I'm going to place along the bench, that's the copper, strontium, barium, so let's see what happens if we do all three.
  • That copper burns so fast, So a periodic video is tricolour, that copper burns so fast.