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Matter can undergo changes.

Matter can undergo changes. Physical Changes. The Physical properties of matter can be changed WITHOUT changing its identity or makeup . New substances are NOT produced. Normally reversible. Examples of Physical Changes. Boiling Water Freezing Water Melting Ice.

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Matter can undergo changes.

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  1. Matter can undergo changes.

  2. Physical Changes • The Physical properties of matter can be changed WITHOUTchanging its identity or makeup . • New substances are NOTproduced. • Normally reversible

  3. Examples of Physical Changes • Boiling Water • Freezing Water • Melting Ice

  4. More Examples of Physical Changes Breaking a glass bottle Melting Butter Breaking an egg

  5. Matter can undergo changes.

  6. Chemical Changes • Chemical Changes occur when the identity or make-up (composition) of matter changes. • New substances are created. • The mass can’t be createdor destroyedbefore, during and after physical and chemical changes.

  7. Signs of a Chemical Change

  8. ColorChange

  9. Change in Temperature (Change in energy-heat, light)

  10. Production of Gas

  11. Production of Precipitate • A solid that separates out of solution during a chemical change is called a precipitate. 

  12. Examples of Chemical Changes Cooking an egg Baking a cake Steel rusting

  13. Examples of Chemical Changes Tarnishing Silver Digesting Food Rotting Food

  14. More Examples of Chemical Changes Fireworks Leaves changing colors Wood burning Bleaching Hair

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