Game Preview

Molecules, Compounds and Mixtures

  •  English    36     Featured
    Chemistry quiz
  •   Study   Slideshow
  • "Building block" of all matter that surround us.
    Atom
  •  5
  • How many different types of atoms occur naturally in the Universe?
    94
  •  15
  • Have many different types of atoms have been made in laboratories?
    24
  •  20
  • Greek philosopher who suggested that everything was made up of tiny pieces.
    Democritus
  •  10
  • Substance that is made of just one kind of atom.
    Element
  •  5
  • Group of atoms joined tightly together.
    Molecule
  •  5
  • A molecule of oxygen is made from ............. atoms of oxygen joined together.
    Two
  •  5
  • The chemical symbol for .................. is O.
    Oxygen
  •  5
  • The chemical symbol for .................. is He.
    Helium
  •  15
  • The chemical symbol for .................. is Na.
    Sodium
  •  5
  • The chemical symbol for .................. is Cl.
    Chlorine
  •  5
  • The chemical symbol for .................. is C.
    Carbon
  •  5
  • Most common element found in the Earth's crust.
    Oxygen
  •  10
  • Most common metal found in the Earth's crust.
    Aluminium
  •  15
  • Element or Compound?
    Compound
  •  5
  • Element or Compound?
    Element
  •  5