The ACT Science Test: Chemistry Review 2

The ACT Science Test will test your understanding of the methods and procedures of scientific experimentation, your ability to analyze scientific information, and your ability to interpret and make inferences about data. The Science Test will not directly test your recall of specific facts or vocabulary. However, familiarity with basic terms and concepts in various scientific disciplines will help ensure that you understand the information presented in passages, charts, and graphs. To help you prepare, we've compiled fundamental terms from each of the major scientific disciplines covered on the exam.
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Full list of words from this list:

words only definitions & notes
  1. dissolve
    pass into a solution
  2. precipitate
    a substance separated from a solution or suspension
  3. substrate
    the material that is acted upon by an enzyme
  4. volume
    the amount of 3-dimensional space occupied by an object
  5. density
    the amount per unit size
  6. acid
    a sour water-soluble compound with a pH of less than 7
  7. base
    a compound reacting with an acid to form a salt and water
  8. reactant
    a substance that is altered during a chemical process
  9. enzyme
    a complex protein produced by cells that acts as a catalyst
  10. catalyst
    substance that initiates or accelerates a chemical reaction
  11. osmosis
    diffusion of molecules through a semipermeable membrane
  12. oxidation
    the process by which a substance combines with oxygen
  13. alloy
    a mixture containing two or more metallic elements
  14. ductile
    capable of being shaped or bent or drawn out
  15. malleable
    capable of being shaped or bent
  16. thermal
    relating to or associated with heat
  17. polar
    having a pair of equal and opposite charges
  18. endothermic
    occurring or formed with absorption of heat
  19. exothermic
    occurring or formed with the release of heat
  20. conduction
    the transmission of heat or electricity or sound
Created on Wed Dec 23 09:08:36 EST 2020 (updated Wed Dec 23 09:09:09 EST 2020)

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