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?
C12H22O H2O + C (black stuff) + other molecules