Vocabulary

  • have to: Must do
  • in order to: For the purpose of; with the aim of.
  • for example: As an illustration or instance.
  • as one: Acting or moving together at the same time.
  • talking about: To discuss a particular topic.
  • with it: Intelligent, alert, and up-to-date.
  • no matter: Regardless of; it does not matter.
  • by definition: Inherently; as an essential quality or characteristic.
  • for instance: As an example.
  • at least: As a minimum
  • end up with: To have something as a result.
  • by now: At the present time or already; before the present.
  • in other words: Stating something in a different way, often to make it clearer or more understandable.
  • count up: To add numbers together to find a total; to increase gradually.
  • in essence: Used to summarize the main point.
  • see into: To investigate or examine closely.
  • on earth: Used to emphasize a question expressing surprise or anger.
  • show up: To arrive or be seen at a place, e.g. a party
  • based on: To use something as the foundation or starting point for something else.
  • except for: Not including; excluding.
  • run with: To take and work with an idea, plan as your own
  • bear with me: Be patient with me.
  • turned out: To arrive for a public event or entertainment
  • out there: In or to a place that is far away
  • taste good: To have a pleasant flavor.
  • by itself: Alone; without help or assistance.
  • happen by: To visit a place casually or unexpectedly.
  • in terms of
  • get the picture: To understand a situation or idea.
  • get back to: To get in contact with someone again
  • in writing: Expressed or presented in written form, rather than spoken.
  • good bit: A significant amount or portion.
  • of course: Sure ; Certainly
  • off the bat: Immediately; without delay.
  • right off the bat: Immediately; from the very beginning or start.
  • deal with
  • look at: To use your eyes to focus on something
  • in return: As a reciprocal action or gesture; in exchange or repayment.
  • in addition to: Besides; as well as
  • figure out: To understand the behavior of someone
  • burn off: To get rid of calories through exercise or physical activity.
  • as long as: For the period that; provided that.
  • down the hatch: An expression used before swallowing food or drink.
  • literally: In a literal manner or sense; exactly as stated.
  • stuff: Generic description for things, materials, objects
  • specific: Precise; particular; just about that thing
  • episode: One separate event in a series of events
  • massive: Very big; large; too big
  • figure: To appear in a game, play or event
  • matter: To be of great importance; to count
  • average: Total of numbers divided by the number of items
  • instance: An example of something; case
  • common: Area in a city or town that is open to everyone
  • consume: To eat, drink, buy or use up something
  • amount: Quantity of something
  • measure: Plan to achieve a desired result
  • compound: Series of buildings that are walled or fenced off
  • molecule: Two or more atoms chemically combined
  • bit: Device put in a horse's mouth to control it
  • definition: Explanation of word's meaning, as in dictionaries
  • predict: To guess or estimate what will or might happen
  • remain: To be left behind; to continue to exist
  • arguably: Highly likely to be true but not certainly true
  • simply: In an easy or clear manner
  • reaction: Bodily response to a drug or something eaten
  • suddenly: In an unexpected or very quick manner
  • pretty: Being attractive to the eye in a simple way
  • mass: Religious ceremony in some Christian churches
  • objective: Being real, rather than simply being an idea
  • standard: Official unit of measuring something
  • oxygen: A gas in the air that we need to breathe
  • equation: Mathematical statement showing things to be equal
  • convert: To switch from a religion, belief etc. to another
  • element: Essential or particular part of something
  • inhale: To breathe in something like air or smoke
  • leave: To go away from; depart
  • react: To change when mixing with other chemicals
  • ratio: The relationship in relative size, etc.
  • chemical: Basic substance produced by mixing elements
  • carbon: Chemical element with an atomic number of 6
  • important: Having power or authority
  • kind: In a caring and helpful manner
  • order: Religious or social group, as of nuns
  • manage: To survive hardships and difficulties; to cope
  • learn: To get knowledge or skills by study or experience
  • chemistry: The study of the structure of substances
  • hydrogen: Lightest of all chemical elements
  • atom: Smallest bit that matter can be broken down into
  • molecular: About or caused by molecules
  • unit: One apartment in a building
  • calculate: To find an answer using mathematics
  • atomic: Concerning atoms
  • lab: Short for 'laboratory'
  • mole: Small animal with dark fur that lives under ground
  • sucrose: Complex carbohydrate used as a sweetener
  • molar: Tooth with broad biting surface used for grinding
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  • not found vocabularyNo vocabulary matches your filters
    • arguably

      US /ˈɑːrɡjuəbli/

      UK /ˈɑ:gjuəbli/

      • Adverb
      • Highly likely to be true but not certainly true
      A2
      More
    • as long as

      US /æz lɔŋ æz/

      UK /æz lɔŋ æz/

      • Conjunction
      • For the period that; provided that.
      • For the length of time that
      • Preposition
      • On the condition that; providing that.
      • Having the same length as.
      A1
      More
    • as one

      US

      UK

      • Adverb
      • Acting or moving together at the same time.
      • In complete agreement or unity.
      • Phrase
      • With a single voice or opinion; unanimously.
      • In perfect harmony or unison.
      A1
      More
    • at least

      US /æt list/

      UK /æt li:st/

      • Adverb
      • As a minimum
      • Not less than
      • Phrase
      • No less than; at the minimum
      • Used to indicate that something is positive in a bad situation.
      C2
      More
    • atom

      US /ˈætəm/

      UK /'ætəm/

      • Noun
      • Smallest bit that matter can be broken down into
      B1
      More
    • atomic

      US /əˈtɑ:mɪk/

      UK /əˈtɒmɪk/

      • Adjective
      • Concerning atoms
      B1
      More
    • average

      US /ˈævərɪdʒ, ˈævrɪdʒ/

      UK /'ævərɪdʒ/

      • Noun (Countable/Uncountable)
      • Total of numbers divided by the number of items
      • Transitive Verb
      • To add numbers then divide by the number of items
      A2TOEIC
      More
    • based on

      US

      UK

      • Phrasal Verb
      • To use something as the foundation or starting point for something else.
      • Preposition
      • Using something as the main idea or foundation.
      • Relying on something as evidence or justification.
      A1
      More
    • bear with me

      US

      UK

      • Phrasal Verb
      • Be patient with me.
      A2
      More
    • burn off

      US /bɚn ɔf/

      UK /bə:n ɔf/

      • Phrasal Verb
      • To get rid of calories through exercise or physical activity.
      • To consume fuel through combustion.
      B1
      More
    • by definition

      US /baɪ ˌdɛfəˈnɪʃən/

      UK /bai ˌdefiˈniʃən/

      • Phrase
      • Inherently; as an essential quality or characteristic.
      B2
      More
    • by itself

      US /baɪ ɪtˈsɛlf/

      UK /bai itˈself/

      • Adverb
      • Alone; without help or assistance.
      • Without any external influence or aid.
      A2
      More
    • by now

      US /baɪ naʊ/

      UK /bai nau/

      • Phrase
      • At the present time or already; before the present.
      A2
      More
    • calculate

      US /ˈkælkjəˌlet/

      UK /'kælkjʊleɪt/

      • Transitive Verb
      • To find an answer using mathematics
      • To make an educated guess about something
      B2
      More
    • carbon

      US /ˈkɑrbən/

      UK /'kɑ:bən/

      • Uncountable Noun
      • Chemical element with an atomic number of 6
      B1
      More
    • chemical

      US /ˈkɛmɪkəl/

      UK /ˈkemɪkl/

      • Noun (Countable/Uncountable)
      • Basic substance produced by mixing elements
      • The branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
      • Adjective
      • Made of various elements
      A2
      More
    • chemistry

      US /ˈkɛmɪstri/

      UK /'kemɪstrɪ/

      • Uncountable Noun
      • The study of the structure of substances
      B1
      More
    • compound

      US /kɑmˈpaUnd/

      UK /'kɒmpaʊnd/

      • Noun (Countable/Uncountable)
      • Series of buildings that are walled or fenced off
      • Chemical made up of several others
      • Transitive Verb
      • To pay interest on a loan including the interest
      • To make something from various parts or components
      B1
      More
    • consume

      US /kənˈsum/

      UK /kən'sju:m/

      • Transitive Verb
      • To eat, drink, buy or use up something
      • To take all your energy; focus the attention
      A2TOEIC
      More
    • convert

      US /kənˈvɚt/

      UK /kən'vɜ:t/

      • Verb (Transitive/Intransitive)
      • To switch from a religion, belief etc. to another
      • To change form, character, or function to another
      • Countable Noun
      • Person switching from one belief system to another
      A2
      More
    • count up

      US /kaʊnt ʌp/

      UK /kaunt ʌp/

      • Phrasal Verb
      • To add numbers together to find a total; to increase gradually.
      B1
      More
    • deal with

      US /dil wɪð/

      UK /di:l wið/

      • Verb (Transitive/Intransitive)
      • To buy or sell goods or services.
      • Phrasal Verb
      • To take action to solve a problem or manage a situation.
      • To be about; concern.
      A1
      More
    • definition

      US /ˌdɛfəˈnɪʃən/

      UK /ˌdefɪˈnɪʃn/

      • Noun (Countable/Uncountable)
      • Explanation of word's meaning, as in dictionaries
      • The sharpness of an image on a screen
      A2TOEIC
      More
    • down the hatch

      US /daʊn ðə ˈhætʃ/

      UK /daun ðə ˈhætʃ/

      • other
      • An expression used before swallowing food or drink.
      B1
      More
    • element

      US /ˈɛləmənt/

      UK /'elɪmənt/

      • Noun (Countable/Uncountable)
      • Essential or particular part of something
      • A substance that cannot be broken down into simpler substances by chemical means.
      A2TOEIC
      More
    • end up with

      US

      UK

      • Phrasal Verb
      • To have something as a result.
      A1
      More
    • episode

      US /ˈɛpɪˌsod/

      UK /'epɪsəʊd/

      • Noun
      • One separate event in a series of events
      • Show which is part of a larger story
      B1TOEIC
      More
    • equation

      US /ɪˈkweʒən, -ʃən/

      UK /ɪˈkweɪʒn/

      • Noun (Countable/Uncountable)
      • Mathematical statement showing things to be equal
      • Complex set of different facts, ideas or issues
      B1
      More
    • except for

      US /ɪkˈsɛpt fɔr/

      UK /ikˈsept fɔ:/

      • Preposition
      • Not including; excluding.
      More
    • figure out

      US /ˈfɪɡjɚ aʊt/

      UK /ˈfiɡə aut/

      • Phrasal Verb
      • To understand the behavior of someone
      • To think through logically to find a solution
      • Verb (Transitive/Intransitive)
      • To understand or find an answer to something.
      • To find a solution to a problem or understand something.
      A1
      More
    • for example

      US

      UK

      • Phrase
      • As an illustration or instance.
      More
    • for instance

      US /fɔr ˈɪnstəns/

      UK /fɔ: ˈinstəns/

      • Adverb
      • As an example.
      • Phrase
      • As an example.
      • As an illustration or case in point
      B1
      More
    • get back to

      US /ɡɛt bæk tu/

      UK /ɡet bæk tu:/

      • Phrasal Verb
      • To get in contact with someone again
      • To return to someone or something; to respond at a later time.
      A1
      More
    • get the picture

      US

      UK

      • Verb (Transitive/Intransitive)
      • To understand a situation or idea.
      A1
      More
    • good bit

      US

      UK

      • Phrase
      • A significant amount or portion.
      • To a substantial degree; considerably.
      A1
      More
    • happen by

      US /ˈhæpən baɪ/

      UK /ˈhæpən baɪ/

      • other
      • To visit a place casually or unexpectedly.
      B2
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • hydrogen

      US /ˈhaɪdrədʒən/

      UK /ˈhaɪdrədʒən/

      • Uncountable Noun
      • Lightest of all chemical elements
      B1
      More
    • in addition to

      US /ɪn əˈdɪʃən tu/

      UK /in əˈdiʃən tu:/

      • Preposition
      • Besides; as well as
      • Phrase
      • Besides; as well as.
      • Furthermore; moreover.
      B1
      More
    • in essence

      US /ɪn ˈɛsəns/

      UK /in ˈesns/

      • Phrase
      • Used to summarize the main point.
      • Relating to the most important aspect of something.
      A1
      More
    • in order to

      US /ɪn ˈɔrdɚ tu/

      UK /in ˈɔ:də tu:/

      • Preposition
      • For the purpose of; with the aim of.
      • Phrase
      • In a specific sequence or arrangement.
      • With the aim of; for the purpose of.
      C1
      More
    • in other words

      US

      UK

      • Phrase
      • Stating something in a different way, often to make it clearer or more understandable.
      More
    • in return

      US /ɪn rɪˈtɚn/

      UK /in riˈtə:n/

      • Adverb
      • As a reciprocal action or gesture; in exchange or repayment.
      • Phrase
      • As compensation or consideration for something.
      • As a reaction or response to something.
      A1
      More
    • in terms of

      US

      UK

      • Phrase
      • With regard to; concerning a particular aspect.
      A1
      More
    • in writing

      US

      UK

      • Phrase
      • Expressed or presented in written form, rather than spoken.
      • Officially recorded in a written document, especially for legal purposes.
      A1
      More
    • inhale

      US /ɪnˈhel/

      UK /ɪnˈheɪl/

      • Verb (Transitive/Intransitive)
      • To breathe in something like air or smoke
      • To eat or drink something extremely fast
      B2
      More
    • instance

      US /ˈɪnstəns/

      UK /'ɪnstəns/

      • Noun (Countable/Uncountable)
      • An example of something; case
      • An occurrence of something.
      • Transitive Verb
      • To give as an example of something else
      A2TOEIC
      More
    • lab

      US /læb/

      UK /læb/

      • Noun (Countable/Uncountable)
      • Short for 'laboratory'
      B1
      More
    • literally

      US /ˈlɪtərəli/

      UK

      • Adverb
      • In a literal manner or sense; exactly as stated.
      • Used for emphasis to describe something that is actually true, often to highlight surprise or intensity.
      B1
      More
    • look at

      US /lʊk æt/

      UK /luk æt/

      • Phrasal Verb
      • To use your eyes to focus on something
      • To focus your eyes on something carefully
      A1
      More
    • mass

      US /mæs/

      UK /mæs/

      • Noun (Countable/Uncountable)
      • Religious ceremony in some Christian churches
      • Large amount or number of something
      • Transitive Verb
      • To gather people or things into a large group
      B1
      More
    • massive

      US /ˈmæsɪv/

      UK /ˈmæsɪv/

      • Adjective
      • Very big; large; too big
      • Large or imposing in scale or scope.
      B1
      More
    • molar

      US /ˈmoʊlə(r)/

      UK /ˈməʊlə(r)/

      • Noun
      • Tooth with broad biting surface used for grinding
      C1
      More
    • mole

      US /mol/

      UK /məʊl/

      • Countable Noun
      • Small animal with dark fur that lives under ground
      • Small natural dark spot on someone's skin
      B2
      More
    • molecular

      US /məˈlɛkjəlɚ/

      UK /mə'lekjələ(r)/

      • Adjective
      • About or caused by molecules
      B2
      More
    • molecule

      US /ˈmɑlɪˌkjul/

      UK /ˈmɒlɪkju:l/

      • Noun
      • Two or more atoms chemically combined
      B2
      More
    • no matter

      US

      UK

      • Conjunction
      • Regardless of; it does not matter.
      • Adverb
      • Regardless of; it is not important
      A1
      More
    • objective

      US /əbˈdʒɛktɪv/

      UK /əbˈdʒektɪv/

      • Adjective
      • Being real, rather than simply being an idea
      • Not influenced by personal feelings or opinions; impartial.
      • Noun
      • Something you decide you want to do; goal
      A2TOEIC
      More
    • of course

      US /ʌv kɔː(r)s/

      UK /ɔv kɔː(r)s/

      • Adverb
      • Sure ; Certainly
      • Phrase
      • For sure; certainly
      A2
      More
    • off the bat

      US /ɔf ði bæt/

      UK /ɔf ðə bæt/

      • Phrase
      • Immediately; without delay.
      • Referring to the moment a baseball leaves the bat after being hit.
      A1
      More
    • on earth

      US /ɑn ɚθ/

      UK /ɔn ə:θ/

      • Phrase
      • Used to emphasize a question expressing surprise or anger.
      • Used to emphasize that something is not possible or will not happen.
      A1
      More
    • out there

      US /aʊt ðɛr/

      UK /aut ðɛə/

      • Adverb
      • In or to a place that is far away
      • Existing in the universe
      • Adjective
      • Unconventional; strange; avant-garde
      • Existing or available.
      A1
      More
    • oxygen

      US /ˈɑksɪdʒən/

      UK /'ɒksɪdʒən/

      • Uncountable Noun
      • A gas in the air that we need to breathe
      • Oxygen administered as a medical treatment.
      B1
      More
    • predict

      US /prɪˈdɪkt/

      UK /prɪ'dɪkt/

      • Transitive Verb
      • To guess or estimate what will or might happen
      A2TOEIC
      More
    • ratio

      US /ˈreɪʃioʊ/

      UK /ˈreɪʃiəʊ/

      • Noun (Countable/Uncountable)
      • The relationship in relative size, etc.
      • The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
      C2
      More
    • react

      US /riˈækt/

      UK /rɪ'ækt/

      • Intransitive Verb
      • To change when mixing with other chemicals
      • To behave or make a change in a particular way
      A2
      More
    • reaction

      US /riˈækʃən/

      UK /rɪ'ækʃn/

      • Noun
      • Bodily response to a drug or something eaten
      • Feeling or action in response to something
      A2
      More
    • remain

      US /rɪˈmen/

      UK /rɪˈmeɪn/

      • Intransitive Verb
      • To be left behind; to continue to exist
      • To stay in a place when other people have gone
      A2TOEIC
      More
    • right off the bat

      US /raɪt ɔf ðə bæt/

      UK /raɪt ɒf ðə bæt/

      • other
      • Immediately; from the very beginning or start.
      B2
      More
    • run with

      US /rʌn wɪð/

      UK /rʌn wið/

      • Phrasal Verb
      • To take and work with an idea, plan as your own
      A1
      More
    • see into

      US /si ˈɪntu/

      UK /si: ˈɪntə/

      • other
      • To investigate or examine closely.
      B2
      More
    • show up

      US /ʃo ʌp/

      UK /ʃəu ʌp/

      • Phrasal Verb
      • To arrive or be seen at a place, e.g. a party
      • To be noticeably better than (someone else)
      A1
      More
    • specific

      US /spɪˈsɪfɪk/

      UK /spəˈsɪfɪk/

      • Adjective
      • Precise; particular; just about that thing
      • Concerning one particular thing or kind of thing
      A2
      More
    • standard

      US /ˈstændəd/

      UK /'stændəd/

      • Noun
      • Official unit of measuring something
      • Principle of behaving in a moral way
      • Adjective
      • Being the accepted normal level of quality
      • (Of a language) being the most accepted in a place
      A2TOEIC
      More
    • stuff

      US /stʌf/

      UK /stʌf/

      • Uncountable Noun
      • Generic description for things, materials, objects
      • Transitive Verb
      • To push material inside something, with force
      B1
      More
    • sucrose

      US /ˈsu:kroʊs/

      UK /ˈsu:krəʊz/

      • Uncountable Noun
      • Complex carbohydrate used as a sweetener
      C2
      More
    • talking about

      US

      UK

      • Phrasal Verb
      • To discuss a particular topic.
      • To be constantly mentioning or bringing up a subject.
      A1
      More
    • taste good

      US

      UK

      • Intransitive Verb
      • To have a pleasant flavor.
      A1
      More
    • turned out

      US

      UK

      • Phrasal Verb
      • To arrive for a public event or entertainment
      • To happen to be in the end
      • Transitive Verb
      • To extinguish or switch off lights.
      A1
      More
    • unit

      US /ˈjunɪt/

      UK /ˈju:nɪt/

      • Countable Noun
      • One apartment in a building
      • Group of people, e.g. soldiers, that work together
      B2TOEIC
      More
    • with it

      US /wɪð ɪt/

      UK /wið it/

      • Adjective
      • Intelligent, alert, and up-to-date.
      • Understanding and knowledgeable about current trends or information.
      A1
      More
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    01:03

    She took a brave step forward, leaving behind her comfort zone to chase her dreams.

    Vocabulary
    • brave

      adj. Having courage

    • comfort zone

      phr. A familiar situation where one feels safe

    Explanation
    a brave step is a noun phrase, where brave is an adjective modifying the noun step, meaning "a courageous step". forward is an adverb modifying step, meaning "ahead". The whole phrase serves as the object, answering the "what" of took (verb) — she took a brave step forward.

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    brave

    US/brev/
    UK/breɪv/
    adj.Brave
    v.t.To bravely face
    A2 Elementary

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    B2US
    #CrashCourse#mole#oxygen#carbon#molar#atomic

    Stoichiometry - Chemistry for Massive Creatures: Crash Course Chemistry #6

    0
    Jasmine Chen cc posted on 2026/07/06
    Ever wondered how chemists measure the tiny stuff that makes up everything around us? This video breaks down stoichiometry, explaining how we can count atoms and molecules by weighing them, and introduces the super important concept of the 'mole' and Avogadro's number. You'll pick up key terms like 'atomic mass units' and 'molar mass' that are essential for understanding chemical reactions!

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