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Introduction to chemistry | Atoms, compounds, and ions | Chemistry | Khan Academy

1,738,989 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

97%
  • 7:34 / 7:45

Speech Rate:

  • 174 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

boiling

/ˈboiliNG/

adjective noun verb

Being boiled in water. action of boiling liquid. To cook in very hot water.

complexity

/kəmˈpleksədē/

noun

State of having many parts and not being simple.

scientists

/ˈsīəntəst/

noun other

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

depicted

/dəˈpikt/

verb

represent by drawing, painting, or other art form.

predictions

/prəˈdikSH(ə)n/

noun other

thing predicted. Statements of what will happen next.

changing

/CHānj/

verb

To go from one train, bus, etc. and go to another.

picture

/ˈpik(t)SHər/

noun verb

Mental image of what something is or looks like. represent in picture.

periodic

/ˌpirēˈädik/

adjective

Happening regularly, but not frequently.

thousands

/ˈTHouz(ə)nd/

number

1000s.

chemistry

/ˈkeməstrē/

noun

branch of science concerned with substances of which matter is composed, investigation of their properties and reactions.

different

/ˈdif(ə)rənt/

adjective

not same as another or each other.

essence

/ˈesəns/

noun

Substance that has a very strong, unique smell.

associate
adjective noun verb

connected with organization. Partner in professional work, e.g. in law. To spend time with other people; mix with.

working

/ˈwərkiNG/

adjective noun verb

having paid employment. action of doing work. To be functioning properly, e.g. a car.

something

/ˈsəmˌTHiNG/

adverb pronoun

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

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