 These changes in matter do not result in a substance with a new _______. In other words the ________ of the substance remains the same before and after the change  Examples: MELT BOIL FREEZE CONDENSE SUBLIME DEPOSIT EVAPORATE CUT MIX FILTER GRIND DISSOLVE STIR DECANT CENTRIFUGE  These changes do not involve bond ________ and bond __________.

 These changes in matter result in a substance with a new _________. In other words the _________ of the substance is altered due to the change.  Examples: REACT ROT SPOIL DECAY RUST OXIDIZE REDUCE CORRODE BURN EXPLODE COOK CHARGE RECHARGE DECOMPOSE DIGEST RESPIRATION COMBUSTION PHOTOSYNTHESIS FERMENT  These changes do involve bond _________ and bond _________.

 These properties of matter are observable without any accompanying _________ in identity. You need not ________ the identity of the substance to observe these properties.  Examples: COLOR MASS VOLUME LENGTH MAGNETISM TEMPERATURE HARDNESS LUSTER MALLEABILITY CONDUCTIVITY AREA WEIGHT TEXTURE DENSITY MELTING PT BOILING PT DIAMETER RADIUS HEIGHT SOLUBILITY  ___________ vs. ___________ Physical Properties

 These properties of matter are observable only with an accompanying ________ in identity of the substance. You must ________ the identity of the substance to observe these properties.  Examples: CORROSIVE FLAMMABLE REACTIVE EXPLOSIVE TOXIC OXIDIZER REDUCER POISONOUS CAUSTIC COMBUSTIBLE  Because these properties require a change in identity, they are usually just _________ forms of the chemical changes already mentioned.

 1) There is no change in molecular/atomic identity.  2) These changes are generally easily reversible.

 1) Formation of a ___________.  2) Appearance of a new ___________.  3) Energy _______________.  4) Energy _______________.  5) After mixing together two _______________, a ________ _______________ forms.  Generally speaking chemical changes are not easily ____________________.