4. Physical property: observed with the senses;
determined without changing the matter to a
new substance
physical property
Ask yourself is something NEW made?
5. Physical property: observed with the senses;
determined without changing the matter to
a new substance
Melting
evaporation
color
odor
physical property
density
taste
6. Physical Change: a change in size, shape or state of
matter; substance does NOT change identity when
it undergoes a physical change
7. Chemical property: indicates how a
substance reacts with something else; matter
will be changed into a new substance after the
reaction
chemical property
Ask yourself is something NEW made?
8. Chemical property: indicates how a
substance reacts with something else; matter
will be changed into a new substance after the
reaction
Reacts with water
Reacts in the air
chemical property
Reacts with other chemicals
9. Chemical Change: a change in the physical
and chemical properties; to change one
substance into another substance
Penny + Acid??
10. If you make a new
substance and it
can’t go back----->
chemical
change.
11. 5 Signs of Chemical
Reaction
1. Gas given off
2. Light or heat given off
3. Color change
4. Solid Precipitate formed
5. Water is formed
