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TOEFL Voc. & Gram. - Unit 15 - Chemistry

  •  English    11     Public
    Choose the best words to complete each sentence.
  •   Study   Slideshow
  • What is the correct for (a) and (b)?
    a) hydrogen b) element
  •  15
  • What is the correct for (a) and (b)?
    a) satellite b) orbits
  •  25
  • PUNISHMENT!
    TONGUE TWISTER
  •  15
  • What is the correct for (a)?
    a) density
  •  10
  • What is the correct for (a) and (b)?
    a) mass b) gravitational
  •  20
  • What is the correct for (a) and (b)?
    a) altitudes b) oxygen
  •  10
  • PUNISHMENT!
    Jump 4 times.
  •  20
  • What is the correct for (a) and (b)?
    a) acceleration b) velocity
  •  25
  • What is the correct for (a) and (b)?
    a) nucleus b) atom
  •  15
  • What is the correct for (a) and (b)?
    a) protons b) electrons
  •  10
  • PUNISHMENT!
    Tongue twister
  •  15