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Physical and chemical changes
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Physical and chemical changes

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  • There are several names for matter changing states: State change, Phase change, Physical change
  • Skip to 1:28 on steel video.
  • Transcript

    • 1. Changes
      Temporary and Permanent
    • 2. Is This Matter Changing?
      How is it changing?
      ?bending
      ?freezing
      ?cutting
      ?heating
    • 3. Is this Matter Changing into something new?
      How is it changing?
    • 4. Even though the wood has changed shape, the wood is still wood!
    • 5. Is this matter changing into something new?
      How is it changing?
    • 6. Is this matter changing into something new?
      How is it changing?
    • 7. Is this matter changing into something new?
      How is it changing?
    • 8. Physical Changes…Nothing New
      Ice cream to melted ice cream?
      Chocolate to melted chocolate?
      Ice, to water, to water vapor?
      Steel to molten steel?
      Temporary Changes
    • 9. PERMANENT CHANGES
      Fireworks are metals(magnesium and copper) that change chemically as they light up the night skies.
    • 10. SIGNS OF CHEMICAL CHANGES
      Color Change
    • 11. SIGNS OF CHEMICAL CHANGES
      Energy released
    • 12. SIGNS OF CHEMICAL CHANGES
      Energy absorbed
    • 13. SIGNS OF CHEMICAL CHANGES
      Production of a Gas
    • 14. SIGNS OF CHEMICAL CHANGES
      • Odor released
      When food spoils, it undergoes a chemical change.
    • 15. SIGNS OF CHEMICAL CHANGES
      Not easily reversed
    • 16. PERMANENT CHANGES
    • 17. PERMANENT CHANGES
    • 18. PERMANENT CHANGES
    • 19. PERMANENT CHANGES
    • 20. PERMANENT CHANGES