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Matter Review (6th Grade)

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  • How many Hydrogen atoms are there in NH3 (Ammonia)?
    2 hydrogen atoms
    3 hydrogen atoms
    6 hydrogen atoms
  • liquid
    gas
    solid
  • which are compounds?
    air, salad
    gold
    salt, water, carbon dioxide
  • compound
    element
    mixture
  • In a gas, particles are
    far apart and move freely
  • Two or more substances physically combined:
    compound
    mixture
    element
  • Element: Au
    Oxygen
    Gold
    Hydrogen
  • Molecules move from an area of
    go really fast
    high concentration to an area of low concentration
    stand still
  • compound
    element
    mixture
  • Two or more elements chemically bonded:
    mixture
    element
    compound
  • Compound: CO2
    carbon dioxide
    oxygen
    salt
  • Particles closely packed, vibrate in place
    solid
    liquid
    gas
  • Particles loosely packed, slide past each other
    solid
    liquid
    gas
  • Explain when thermal energy is removed.
    particles move slower
  • A pure substance made of one type of atom:
    element
    compound
    atom
    mixture
  • How many Carbon atoms are in C6H12O6 (Glucose)?
    3 carbon atoms
    6 carbon atoms
    2 carbon atoms
  • liquid
    gas
    solid
  • Element: O
    oxygen
    carbon
    carbon dioxide
  • What happens when thermal energy is removed?
    particles stay still
    particles move faster
    particles move slower
  • Which are mixtures?
    water
    salad, air
    oxygen
  • Water molecules are
    in constant motion
    standing still
    solid
  • What happens when we add thermal energy?
    particles don't move
    Particles move slower
    Particles move faster
  • What is the term for "materials expand when heated, contract when cooled"?
    molecule
    thermal expansion
    atoms
  • In a solid, particles are
    closely packed
  • Explain what happens when thermal energy is added.
    particles move faster
  • which are elements?
    oxygen, gold
    salt, salad
    water, air
  • Compound: NaCl
    hydrogen
    water
    Salt
  • Compound: H2O
    carbon dioxide
    water
    salt
  • Made of two or more atoms bonded together:
    element
    molecules
    atoms
  • Basic unit of matter
    atom
    compound
    molecule
  • Particles far apart
    solid
    gas
    liquid
  • What is the main factor affecting matter?
    liquids
    amount of thermal energy
    gases
  • How many Carbon atoms, hydrogen atoms, and oxygen atoms are there in C6H12O6 (Glucose)?
    Carbon: 5 Hydrogen: 10 Oxygen: 2
    Carbon: 3, Hydrogen: 6, Oxygen: 3
    Carbon: 6, Hydrogen: 12, Oxygen: 6
  • In a liquid particles are
    loosely packed
  • gas
    liquid
    solid
  • How many hydrogens and oxygens are there in a H2O water molecule?
    2 atoms of hydrogen, 1 atom of oxygen
    1 hydrogen, 1 oxygen
    1 atom of hydrogen, 2 atoms of oxygen