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History of the Earth Part 1: Hadean, Archean, and Proterozoic Eons

122,564 views

Professor Dave Explains

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

98%
  • 10:59 / 11:10

Speech Rate:

  • 127 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

history

/ˈhist(ə)rē/

noun

Study of past events as an academic subject.

geological

/ˌjēəˈläjəkəl/

adjective

Concerning studies of the Earth's rocks and soil.

ubiquitous

/yo͞oˈbikwədəs/

adjective

Found everywhere; found in many places.

comparison

/kəmˈperəsən/

noun

consideration of similarities or dissimilarities between two things.

timescales

/ˈtīmskāl/

noun other

time allowed for or taken by process or sequence of events. Length of time something will take.

numbers

/ˈnəmbər/

noun other verb

arithmetical value expressed by word, symbol, or figure. Symbols such as 1, 2, 56, 793. To put numbers on things.

precise

/prəˈsīs/

adjective

(Of language details etc.) Very accurate and exact.

geologists

/jēˈäləjəst/

noun other

expert in or student of geology. People who study the Earth's rocks, layers etc..

hostile

/ˈhästl/

adjective

unfriendly.

information

/ˌinfərˈmāSH(ə)n/

noun

Collection of facts and details about something.

estimates
noun other verb

approximate calculation. Guesses or calculations of cost, size or value. To guess or calculate the cost, size or value of.

earliest

/ˈərlē/

adjective adverb

happening before usual time. before usual time.

planets

/ˈplanət/

noun other

celestial body moving round star. One of the bodies that orbit the sun.

appropriate
adjective verb

suitable or proper in circumstances. To set aside money for a specific later purpose.

operates

/ˈäpəˌrāt/

verb

To be working or being used.

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