Changes in Matter
Adapted from Jefferson Lab activities packet



 
 

Look at the picture of the candle burning.  The wax of a candle burns into ash and smoke. The original materials are changing into something different.  Changes that create a new material are called chemical changes.
Look at the picture of water boiling and changing into steam.  Steam is another form of water.  Heating water did not create a new material.  In changing the water from a liquid to a gas, only the state of the water changed.  Changes in the shape, size, or state of a material are called physical changes.

   Directions:  Study the changes that are occuring in each picture below.  Tell what is changing.  Then decide if the
                       change is a chemical change or a physical change.
 


What is Changing?What Kind of  Change?
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  Challenge!  List three changes you observe at home.  Tell what is changing and what kind of change is occurring in each.
                    Can some changes be both physcial and chemical?