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Physical and Chemical Changes!

Physical and Chemical Changes!. a.k.a. Smashing and Burning Sugar Cubes!. Physical change: A change that alters the appearance or form of a substance but does not make the material into another substance. Ex. Ice liquid water steam wooden board saw dust. Chemical change:

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Physical and Chemical Changes!

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  1. Physical and Chemical Changes! a.k.a. Smashing and Burning Sugar Cubes!

  2. Physical change: A change that alters the appearance or form of a substance but does not make the material into another substance. Ex. Ice liquid water steam wooden board saw dust

  3. Chemical change: A change in which one or more substances combine or decompose to form new substances. Indications of a chemical change:

  4. Sugar Smashing lab: Part 1 • Make a groovy foil frying pan! • Find the mass of the sugar cube and foil. ____g • Smash the sugar cube • Find the mass of the smashed sugar cube. ____g • Observations: • Was this a chemical or physical change? • Was there a change in mass?

  5. Part 2! • Use the mass from part 1 for part 2 • Be sure not to lose any sugar! • Heat the sugar just until the edges start to brown. • Find the mass of the sugar “thing” and foil after heating mass after heating ____g • Observations: • Was this a physical change, chemical change, or both? Explain! • Was there any change in mass after heating? C12H22O11 H2O + C (black stuff) + other molecules

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