Physical and Chemical Changes

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Presentation transcript:

Physical and Chemical Changes Physical and Chemical Changes.ppt

Physical Changes Changes to matter in which composition of the matter stays the same.

Examples of Physical Changes Change of shape

Examples of Physical Changes Dissolving

Examples of Physical Changes State of Matter

Chemical Changes Changes in matter in which a new substance is formed. They are not easily reversed.

Signs of Chemical Changes Change of Color

Signs of Chemical Changes Energy is absorbed or given off

Signs of Chemical Changes Change in odor

Signs of Chemical Changes Formation of a gas or solid

Examples of Chemical Changes Rusting

Examples of Chemical Changes Tarnishing

Examples of Chemical Changes Burning

Examples of Chemical Changes Food Cooking or Spoiling