Physical and Chemical Changes
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Transcript of Physical and Chemical Changes
Physical Physical and and
Chemical Chemical ChangesChanges
October 27, 2010October 27, 2010
PHYSICAL CHANGESPHYSICAL CHANGES A physical change is a change in the size, A physical change is a change in the size,
shape, form, or state of matter.shape, form, or state of matter. The chemical makeup of the matter stays the The chemical makeup of the matter stays the
same.same. Water undergoes a change of state when it Water undergoes a change of state when it
changes from a solid to a liquid or a liquid to a changes from a solid to a liquid or a liquid to a gas.gas.
October 29, 2009
CHEMICAL CHANGESCHEMICAL CHANGES In chemical changes, new matter is changed to In chemical changes, new matter is changed to
a different type of matter. a different type of matter. Evidence that a chemical change might have Evidence that a chemical change might have
occurred includes a color or energy change or occurred includes a color or energy change or the formation of a gas or solid.the formation of a gas or solid.
October 29, 2009
Complete the following concept map:Complete the following concept map:
CHEMICAL
EnergyChange
CHANGESCHANGES
Which can be either
Such as a change inWhich is identified by a
October 29, 2009
KEYKEY
CHEMICAL
ColorChange
Gas Released
SolidForms
EnergyChange
PHYSICAL
State Size Shape
CHANGESCHANGES
Which can be either
Such as a change inWhich is identified by a
October 29, 2009