Nature of Matter

Ms. B (United States of America)
27 words 26 learners

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Full list of words from this list:

words only definitions & notes
  1. atom
    the smallest component of an element
  2. glucose
    a monosaccharide sugar that has several forms
  3. element
    a substance that cannot be separated into simpler substances
  4. isotope
    atom with same atomic number, different number of neutrons
  5. compound
    a whole formed by a union of two or more elements or parts
  6. ionic bond
    a chemical bond between oppositely charged ions
  7. covalent bond
    a chemical bond that involves sharing a pair of electrons between atoms in a molecule
  8. molecule
    the simplest structural unit of an element or compound
  9. pH scale
    a measure of the acidity or alkalinity of a solution
  10. acid
    a sour water-soluble compound with a pH of less than 7
  11. base
    a compound reacting with an acid to form a salt and water
  12. carbohydrate
    an essential component of living cells and source of energy
  13. lipid
    oily, insoluble organic compound that's a component of cells
  14. nucleic acid
    (biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cells
  15. protein
    an organic compound essential to living cells
  16. amino acid
    organic compounds containing an amino group and acid group
  17. chemical reaction
    a process in which substances are changed into others
  18. reactant
    a substance that is altered during a chemical process
  19. product
    a chemical substance formed as a result of a reaction
  20. enzyme
    a complex protein produced by cells that acts as a catalyst
  21. catalyst
    substance that initiates or accelerates a chemical reaction
  22. proton
    a stable particle with positive charge
  23. electron
    an elementary particle with negative charge
  24. neutron
    a subatomic particle with zero charge
  25. orbit
    the path of an electron around the nucleus of an atom
  26. nucleus
    the positively charged dense center of an atom
  27. chemical reaction
    a process in which substances are changed into others
Created on Tue Sep 10 10:55:19 EDT 2013 (updated Tue Sep 17 12:23:36 EDT 2013)

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