Note that an
Ultimately, all matter can be classified as
For a more advanced list of resources on atoms,
Jan 4, 2013
In this educational animated movie about Science learn about reactions, bonding , ionic, covalent, and mixing.
... 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
PART 1 Definitions of
Checkpoint. Can you recognise
All substances have mass and therefore must be composed of atoms. These atoms and how they assemble themselves in the substance determines their ...