Note that an
A Matter of Fact.
... water) rising from the test-tube, and pretty soon, all that's left are a few crystals
of salt stuck to the edges! Was that liquid an
All substances have mass and therefore must be composed of atoms. These atoms and how they assemble themselves in the substance determines their ...
For a more advanced list of resources on atoms,
Identify the 4 classifications of matter -
A review of the concepts of pure substances, solutions and